Experiment Twelve

a Lizard attacks — 230 cards in the game can cause this (Experiment Twelve is one).

1. Hired Claw — When Experiment Twelve attacks, Hired Claw deals 1 damage

a creature is turned face up — 238 cards in the game can cause this.

1. Printlifter Ooze — When Experiment Twelve is turned face up, Printlifter Ooze makes a token
2. Pyrotechnic Performer — When Experiment Twelve is turned face up, Pyrotechnic Performer deals its power damage
3. Pine Walker — When Experiment Twelve is turned face up, Pine Walker untaps a permanent
4. Experimental Lab // Staff Room — When a creature is turned face up thanks to Experimental Lab // Staff Room, Experiment Twelve puts its power counters on a permanent
5. Ugin's Mastery — When a creature is turned face up thanks to Ugin's Mastery, Experiment Twelve puts its power counters on a permanent
6. Den Protector — When Den Protector is turned face up, Experiment Twelve puts its power counters on a permanent
7. Krosan Cloudscraper — When Krosan Cloudscraper is turned face up, Experiment Twelve puts its power counters on a permanent
8. Serpentine Basilisk — When Serpentine Basilisk is turned face up, Experiment Twelve puts its power counters on a permanent
9. Vengeful Creeper — When Vengeful Creeper is turned face up, Experiment Twelve puts its power counters on a permanent
10. Nantuko Vigilante — When Nantuko Vigilante is turned face up, Experiment Twelve puts its power counters on a permanent
11. Ainok Survivalist — When Ainok Survivalist is turned face up, Experiment Twelve puts its power counters on a permanent
12. Hooded Hydra — When Hooded Hydra is turned face up, Experiment Twelve puts its power counters on a permanent
13. Thelonite Hermit — When Thelonite Hermit is turned face up, Experiment Twelve puts its power counters on a permanent
14. Fatal Mutation — When Experiment Twelve is turned face up, Fatal Mutation kills it

36 other cards care about it too. These are the ones with the most connections.

an Elf attacks — 723 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve attacks:

1. Celeborn the Wise — scries
2. Tyvar the Bellicose — grants deathtouch
3. Harald Unites the Elves — shrinks a creature by -1/-1
4. Arboreal Alliance — triggers

a nontoken Elf enters the battlefield — 728 cards in the game can cause this (Experiment Twelve is one).

1. Wirewood Hivemaster — When Experiment Twelve enters, Wirewood Hivemaster makes a token

an Elf enters the battlefield — 752 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve enters:

1. Wolverine Riders — gains you its toughness life
2. Elvish Warmaster — makes a token
3. Elvish Vanguard — puts a +1/+1 counter on itself
4. Marwyn, the Nurturer — puts a +1/+1 counter on itself
5. Woodland Weavemaster — gets +1/+1
6. High Perfect Morcant — puts a counter on a permanent an opponent controls
7. Maralen, Fae Ascendant — exiles a card from an opponent's library

1 other card cares about it too. These are the ones with the most connections.

a Warrior attacks — 1,319 cards in the game can cause this (Experiment Twelve is one).

1. Najeela, the Blade-Blossom — When Experiment Twelve attacks, Najeela, the Blade-Blossom makes a token

a Warrior deals combat damage — 1,319 cards in the game can cause this (Experiment Twelve is one).

1. Raiders' Spoils — When Experiment Twelve deals combat damage, Raiders' Spoils makes you lose life

a Warrior creature enters the battlefield — 1,401 cards in the game can cause this (Experiment Twelve is one).

1. Obsidian Battle-Axe — When Experiment Twelve enters, Obsidian Battle-Axe triggers

a Warrior enters the battlefield — 1,403 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve enters:

1. Mardu Woe-Reaper — hits a graveyard
2. Thrasher Brute — makes each opponent lose 1 life
3. Decorated Champion — puts a +1/+1 counter on itself

anything gets a counter — 4,415 cards in the game can cause this (Experiment Twelve is one).

1. All Will Be One — When a permanent gets a counter thanks to Experiment Twelve, All Will Be One deals that much damage
2. Lonis, Genetics Expert — When Lonis, Genetics Expert gets a counter thanks to Experiment Twelve, it triggers

7 other cards care about it too. These are the ones with the most connections.

anything attacks — 17,934 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Grim Javelineer — gives +1/+0
4. Invisible Woman — triggers
5. Caesar, Legion's Emperor — sacrifices a creature
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Banon, the Returners' Leader — draws and discards
10. Toph, Earthbending Master — puts a counter on a permanent

116 other cards care about it too. These are the ones with the most connections.

a creature attacks — 17,934 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Jolene, Plundering Pugilist — makes a token
7. Saw — sacrifices a creature
8. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Total War — kills a creature

181 other cards care about it too. These are the ones with the most connections.

a creature blocks — 17,934 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Tide of War — sacrifices a creature
4. Dead-Iron Sledge — kills a creature
5. Dwindle — kills a creature

23 other cards care about it too. These are the ones with the most connections.

a nontoken creature attacks — 17,934 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve attacks:

1. Mardu Ascendancy — makes a token
2. Basri Ket — makes a token
3. Militia's Pride — makes a token

a creature enters the battlefield — 19,800 cards in the game can cause this (Experiment Twelve is one).

When Experiment Twelve enters:

1. Slash, Reptile Rampager — deals 2 damage
2. Ray Fillet, Wave Warrior — puts a counter on itself
3. The Neutrinos — gets +1/+0
4. Wingnut, Bat on the Belfry — grants flying, haste and menace
5. Aetherstorm Roc — puts a counter on a permanent you control
6. Raphael, Most Attitude — exiles a card from your library

312 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 26,499 cards in the game can cause this (Experiment Twelve is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Experiment Twelve enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

40 other cards care about it too. These are the ones with the most connections.