Rookie Mistake #66
M21
Core Set 2021
EN
Details
Rookie Mistake
Until end of turn, target creature gets +0/+2 and another target creature gets -2/-0.
"Stop locking your knees as you strike! Now stand up and try again."
Set Name
Core Set 2021
Set Code
M21
Set Series
Core Set
Card Number
66
Language
EN
Variant
Regular Version
Rarity
Common
Colour
U
Play Cost
{U}
Card Type
Instant
Illustrator
Zoltan Boros
Release Date
3 Jul 2020
TCGPlayer ID
215864
Arena ID
71848
Cardmarket ID
472169
MTGO ID
81359
PriceCharting ID
2193389
Scryfall ID
b19de7a5-c291-405b-a2e6-8d3ac56e6570
Barcode
5802324707321
Larrikin Market Pricing
To understand its value, here's an international market summary. It seems to be selling around $0.40 – $0.50.
$0.40 – $0.50
View a source's price:
Market confidence
Low
Volume
Medium
Updated
14 Sep 2026
Core Set 2021
Magic: The Gathering · EN · M21
| # | Name | Variants |
|---|---|---|
| 1 | Ugin, the Spirit Dragon | |
| 10 | Basri's Solidarity | |
| 100 | Gloom Sower | |
| 101 | Goremand | |
| 102 | Grasp of Darkness | |
| 103 | Grim Tutor | |
| 104 | Hooded Blightfang | |
| 105 | Infernal Scarring | |
| 106 | Kaervek, the Spiteful | |
| 107 | Kitesail Freebooter | |
| 108 | Liliana, Waker of the Dead | |
| 109 | Liliana's Devotee | |
| 11 | Celestial Enforcer | |
| 110 | Liliana's Standard Bearer | |
| 111 | Liliana's Steward | |
| 112 | Malefic Scythe | |
| 113 | Masked Blackguard | |
| 114 | Massacre Wurm | |
| 115 | Mind Rot | |
| 116 | Necromentia | |
| 117 | Peer into the Abyss | |
| 118 | Pestilent Haze | |
| 119 | Rise Again | |
| 12 | Concordia Pegasus | |
| 120 | Sanctum of Stone Fangs | |
| 121 | Sanguine Indulgence | |
| 122 | Silversmote Ghoul | |
| 123 | Skeleton Archer | |
| 124 | Tavern Swindler | |
| 125 | Thieves' Guild Enforcer | |
| 126 | Village Rites | |
| 127 | Vito, Thorn of the Dusk Rose | |
| 128 | Walking Corpse | |
| 129 | Witch's Cauldron | |
| 13 | Containment Priest | |
| 130 | Battle-Rattle Shaman | |
| 131 | Bolt Hound | |
| 132 | Bone Pit Brute | |
| 133 | Brash Taunter | |
| 134 | Burn Bright | |
| 135 | Chandra, Heart of Fire | |
| 136 | Chandra's Incinerator | |
| 137 | Chandra's Magmutt | |
| 138 | Chandra's Pyreling | |
| 139 | Conspicuous Snoop | |
| 14 | Daybreak Charger | |
| 140 | Crash Through | |
| 141 | Destructive Tampering | |
| 142 | Double Vision | |
| 143 | Fiery Emancipation | |
| 144 | Furious Rise | |
| 145 | Furor of the Bitten | |
| 146 | Gadrak, the Crown-Scourge | |
| 147 | Goblin Arsonist | |
| 148 | Goblin Wizardry | |
| 149 | Havoc Jester | |
| 15 | Defiant Strike | |
| 150 | Heartfire Immolator | |
| 151 | Hellkite Punisher | |
| 152 | Hobblefiend | |
| 153 | Igneous Cur | |
| 154 | Kinetic Augur | |
| 155 | Onakke Ogre | |
| 156 | Pitchburn Devils | |
| 157 | Sanctum of Shattered Heights | |
| 158 | Scorching Dragonfire | |
| 159 | Shock | |
| 16 | Dub | |
| 160 | Soul Sear | |
| 161 | Spellgorger Weird | |
| 162 | Subira, Tulzidi Caravanner | |
| 163 | Sure Strike | |
| 164 | Terror of the Peaks | |
| 165 | Thrill of Possibility | |
| 166 | Traitorous Greed | |
| 167 | Transmogrify | |
| 168 | Turn to Slag | |
| 169 | Turret Ogre | |
| 17 | Faith's Fetters | |
| 170 | Unleash Fury | |
| 171 | Volcanic Geyser | |
| 172 | Volcanic Salvo | |
| 173 | Azusa, Lost but Seeking | |
| 174 | Burlfist Oak | |
| 175 | Canopy Stalker | |
| 176 | Colossal Dreadmaw | |
| 177 | Cultivate | |
| 178 | Drowsing Tyrannodon | |
| 179 | Elder Gargaroth | |
| 18 | Falconer Adept | |
| 180 | Feline Sovereign | |
| 181 | Fierce Empath | |
| 182 | Fungal Rebirth | |
| 183 | Garruk, Unleashed | |
| 184 | Garruk's Gorehorn | |
| 185 | Garruk's Harbinger | |
| 186 | Garruk's Uprising | |
| 187 | Gnarled Sage | |
| 188 | Heroic Intervention | |
| 189 | Hunter's Edge | |
| 19 | Feat of Resistance | |
| 190 | Invigorating Surge | |
| 191 | Jolrael, Mwonvuli Recluse | |
| 192 | Life Goes On | |
| 193 | Llanowar Visionary | |
| 194 | Ornery Dilophosaur | |
| 195 | Portcullis Vine | |
| 196 | Pridemalkin | |
| 197 | Primal Might | |
| 198 | Quirion Dryad | |
| 199 | Ranger's Guile | |
| 2 | Alpine Watchdog | |
| 20 | Gale Swooper | |
| 200 | Return to Nature | |
| 201 | Run Afoul | |
| 202 | Sabertooth Mauler | |
| 203 | Sanctum of Fruitful Harvest | |
| 204 | Scavenging Ooze | |
| 205 | Setessan Training | |
| 206 | Skyway Sniper | |
| 207 | Snarespinner | |
| 208 | Sporeweb Weaver | |
| 209 | Thrashing Brontodon | |
| 21 | Glorious Anthem | |
| 210 | Titanic Growth | |
| 211 | Track Down | |
| 212 | Trufflesnout | |
| 213 | Warden of the Woods | |
| 214 | Wildwood Scourge | |
| 215 | Alpine Houndmaster | |
| 216 | Conclave Mentor | |
| 217 | Dire Fleet Warmonger | |
| 218 | Experimental Overload | |
| 219 | Indulging Patrician | |
| 22 | Griffin Aerie | |
| 220 | Leafkin Avenger | |
| 221 | Lorescale Coatl | |
| 222 | Niambi, Esteemed Speaker | |
| 223 | Obsessive Stitcher | |
| 224 | Radha, Heart of Keld | |
| 225 | Sanctum of All | |
| 226 | Twinblade Assassins | |
| 227 | Watcher of the Spheres | |
| 228 | Chromatic Orrery | |
| 229 | Chrome Replicator | |
| 23 | Idol of Endurance | |
| 230 | Epitaph Golem | |
| 231 | Forgotten Sentinel | |
| 232 | Mazemind Tome | |
| 233 | Meteorite | |
| 234 | Palladium Myr | |
| 235 | Prismite | |
| 236 | Short Sword | |
| 237 | Silent Dart | |
| 238 | Skyscanner | |
| 239 | Solemn Simulacrum | |
| 24 | Legion's Judgment | |
| 240 | Sparkhunter Masticore | |
| 241 | Tormod's Crypt | |
| 242 | Animal Sanctuary | |
| 243 | Bloodfell Caves | |
| 244 | Blossoming Sands | |
| 245 | Dismal Backwater | |
| 246 | Fabled Passage | |
| 247 | Jungle Hollow | |
| 248 | Radiant Fountain | |
| 249 | Rugged Highlands | |
| 25 | Light of Promise | |
| 250 | Scoured Barrens | |
| 251 | Swiftwater Cliffs | |
| 252 | Temple of Epiphany | |
| 253 | Temple of Malady | |
| 254 | Temple of Mystery | |
| 255 | Temple of Silence | |
| 256 | Temple of Triumph | |
| 257 | Thornwood Falls | |
| 258 | Tranquil Cove | |
| 259 | Wind-Scarred Crag | |
| 26 | Makeshift Battalion | |
| 260 | Plains | |
| 261 | Plains | |
| 262 | Plains | |
| 263 | Island | |
| 264 | Island | |
| 265 | Island | |
| 266 | Swamp | |
| 267 | Swamp | |
| 268 | Swamp | |
| 269 | Mountain | |
| 27 | Mangara, the Diplomat | |
| 270 | Mountain | |
| 271 | Mountain | |
| 272 | Forest | |
| 273 | Forest | |
| 274 | Forest | |
| 275 | Teferi, Master of Time | |
| 276 | Teferi, Master of Time | |
| 277 | Teferi, Master of Time | |
| 278 | Rin and Seri, Inseparable | |
| 279 | Ugin, the Spirit Dragon | |
| 28 | Nine Lives | |
| 280 | Basri Ket | |
| 281 | Teferi, Master of Time | |
| 282 | Liliana, Waker of the Dead | |
| 283 | Chandra, Heart of Fire | |
| 284 | Garruk, Unleashed | |
| 285 | Ugin, the Spirit Dragon | |
| 286 | Basri Ket | |
| 287 | Basri's Acolyte | |
| 288 | Basri's Lieutenant | |
| 289 | Basri's Solidarity | |
| 29 | Pack Leader | |
| 290 | Teferi, Master of Time | |
| 291 | Teferi, Master of Time | |
| 292 | Teferi, Master of Time | |
| 293 | Teferi, Master of Time | |
| 294 | Teferi's Ageless Insight | |
| 295 | Teferi's Protege | |
| 296 | Teferi's Tutelage | |
| 297 | Liliana, Waker of the Dead | |
| 298 | Liliana's Devotee | |
| 299 | Liliana's Standard Bearer | |
| 3 | Angelic Ascension | |
| 30 | Rambunctious Mutt | |
| 300 | Liliana's Steward | |
| 301 | Chandra, Heart of Fire | |
| 302 | Chandra's Incinerator | |
| 303 | Chandra's Magmutt | |
| 304 | Chandra's Pyreling | |
| 305 | Garruk, Unleashed | |
| 306 | Garruk's Gorehorn | |
| 307 | Garruk's Harbinger | |
| 308 | Garruk's Uprising | |
| 309 | Plains | |
| 31 | Revitalize | |
| 310 | Island | |
| 311 | Swamp | |
| 312 | Mountain | |
| 313 | Forest | |
| 314 | Containment Priest | |
| 315 | Grim Tutor | |
| 316 | Massacre Wurm | |
| 317 | Cultivate | |
| 318 | Scavenging Ooze | |
| 319 | Solemn Simulacrum | |
| 32 | Runed Halo | |
| 320 | Basri, Devoted Paladin | |
| 321 | Adherent of Hope | |
| 322 | Basri's Aegis | |
| 323 | Sigiled Contender | |
| 324 | Teferi, Timeless Voyager | |
| 325 | Historian of Zhalfir | |
| 326 | Mystic Skyfish | |
| 327 | Teferi's Wavecaster | |
| 328 | Liliana, Death Mage | |
| 329 | Liliana's Scorn | |
| 33 | Sanctum of Tranquil Light | |
| 330 | Liliana's Scrounger | |
| 331 | Spirit of Malevolence | |
| 332 | Chandra, Flame's Catalyst | |
| 333 | Chandra's Firemaw | |
| 334 | Keral Keep Disciples | |
| 335 | Storm Caller | |
| 336 | Garruk, Savage Herald | |
| 337 | Garruk's Warsteed | |
| 338 | Predatory Wurm | |
| 339 | Wildwood Patrol | |
| 34 | Seasoned Hallowblade | |
| 340 | Baneslayer Angel | |
| 341 | Glorious Anthem | |
| 342 | Idol of Endurance | |
| 343 | Mangara, the Diplomat | |
| 344 | Nine Lives | |
| 345 | Pack Leader | |
| 346 | Runed Halo | |
| 347 | Speaker of the Heavens | |
| 348 | Barrin, Tolarian Archmage | |
| 349 | Discontinuity | |
| 35 | Secure the Scene | |
| 350 | Ghostly Pilferer | |
| 351 | Pursued Whale | |
| 352 | See the Truth | |
| 353 | Shacklegeist | |
| 354 | Stormwing Entity | |
| 355 | Sublime Epiphany | |
| 356 | Demonic Embrace | |
| 357 | Hooded Blightfang | |
| 358 | Kaervek, the Spiteful | |
| 359 | Necromentia | |
| 36 | Selfless Savior | |
| 360 | Peer into the Abyss | |
| 361 | Thieves' Guild Enforcer | |
| 362 | Vito, Thorn of the Dusk Rose | |
| 363 | Brash Taunter | |
| 364 | Conspicuous Snoop | |
| 365 | Double Vision | |
| 366 | Fiery Emancipation | |
| 367 | Gadrak, the Crown-Scourge | |
| 368 | Subira, Tulzidi Caravanner | |
| 369 | Terror of the Peaks | |
| 37 | Siege Striker | |
| 370 | Transmogrify | |
| 371 | Volcanic Salvo | |
| 372 | Azusa, Lost but Seeking | |
| 373 | Elder Gargaroth | |
| 374 | Feline Sovereign | |
| 375 | Heroic Intervention | |
| 376 | Jolrael, Mwonvuli Recluse | |
| 377 | Primal Might | |
| 378 | Sporeweb Weaver | |
| 379 | Niambi, Esteemed Speaker | |
| 38 | Speaker of the Heavens | |
| 380 | Radha, Heart of Keld | |
| 381 | Sanctum of All | |
| 382 | Chromatic Orrery | |
| 383 | Mazemind Tome | |
| 384 | Sparkhunter Masticore | |
| 385 | Animal Sanctuary | |
| 386 | Fabled Passage | |
| 387 | Temple of Epiphany | |
| 388 | Temple of Malady | |
| 389 | Temple of Mystery | |
| 39 | Staunch Shieldmate | |
| 390 | Temple of Silence | |
| 391 | Temple of Triumph | |
| 392 | Pack Leader | |
| 393 | Selfless Savior | |
| 394 | Frantic Inventory | |
| 395 | Eliminate | |
| 396 | Heartfire Immolator | |
| 397 | Llanowar Visionary | |
| 4 | Anointed Chorister | |
| 40 | Swift Response | |
| 41 | Tempered Veteran | |
| 42 | Valorous Steed | |
| 43 | Vryn Wingmare | |
| 44 | Warded Battlements | |
| 45 | Barrin, Tolarian Archmage | |
| 46 | Cancel | |
| 47 | Capture Sphere | |
| 48 | Discontinuity | |
| 49 | Enthralling Hold | |
| 5 | Aven Gagglemaster | |
| 50 | Frantic Inventory | |
| 51 | Frost Breath | |
| 52 | Ghostly Pilferer | |
| 53 | Jeskai Elder | |
| 54 | Keen Glidemaster | |
| 55 | Library Larcenist | |
| 56 | Lofty Denial | |
| 57 | Miscast | |
| 58 | Mistral Singer | |
| 59 | Opt | |
| 6 | Baneslayer Angel | |
| 60 | Pursued Whale | |
| 61 | Rain of Revelation | |
| 62 | Read the Tides | |
| 63 | Rewind | |
| 64 | Riddleform | |
| 65 | Roaming Ghostlight | |
| 66 | Rookie Mistake | |
| 67 | Rousing Read | |
| 68 | Sanctum of Calm Waters | |
| 69 | See the Truth | |
| 7 | Basri Ket | |
| 70 | Shacklegeist | |
| 71 | Shipwreck Dowser | |
| 72 | Spined Megalodon | |
| 73 | Stormwing Entity | |
| 74 | Sublime Epiphany | |
| 75 | Teferi, Master of Time | |
| 76 | Teferi's Ageless Insight | |
| 77 | Teferi's Protege | |
| 78 | Teferi's Tutelage | |
| 79 | Tide Skimmer | |
| 8 | Basri's Acolyte | |
| 80 | Tolarian Kraken | |
| 81 | Tome Anima | |
| 82 | Unsubstantiate | |
| 83 | Vodalian Arcanist | |
| 84 | Waker of Waves | |
| 85 | Wall of Runes | |
| 86 | Wishcoin Crab | |
| 87 | Alchemist's Gift | |
| 88 | Archfiend's Vessel | |
| 89 | Bad Deal | |
| 9 | Basri's Lieutenant | |
| 90 | Blood Glutton | |
| 91 | Caged Zombie | |
| 92 | Carrion Grub | |
| 93 | Crypt Lurker | |
| 94 | Deathbloom Thallid | |
| 95 | Demonic Embrace | |
| 96 | Duress | |
| 97 | Eliminate | |
| 98 | Fetid Imp | |
| 99 | Finishing Blow |
Currently out of stock
Price
Price unavailable
Larrikin Market Pricing
Selling around $0.40 – $0.50.
$0.40 – $0.50
Sources:
Market confidence
Low
Volume
Medium
Updated
14 Sep 2026
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