Warren Instigator

a Berserker attacks — 214 cards in the game can cause this (Warren Instigator is one).

1. The Bloodsky Massacre — When Warren Instigator attacks, The Bloodsky Massacre draws you 1 card

a Goblin attacks — 567 cards in the game can cause this (Warren Instigator is one).

When Warren Instigator attacks:

1. General Kreat, the Boltbringer — makes a token
2. Mordor Trebuchet — makes a token

a Goblin deals combat damage — 567 cards in the game can cause this (Warren Instigator is one).

When Warren Instigator deals combat damage:

1. Boggart Mob — makes a token
2. Auntie's Snitch — returns itself from the graveyard
3. Cabal Slaver — triggers
4. Gorbag of Minas Morgul — sacrifices it
5. Moria Marauder — exiles a card from your library

a Goblin enters the battlefield — 622 cards in the game can cause this (Warren Instigator is one).

When a Goblin enters thanks to Warren Instigator:

1. Quest for the Goblin Lord — puts a quest counter on itself
2. Goblin Assassin — makes a player sacrifice a creature

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

When Warren Instigator 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

112 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 (Warren Instigator is one).

When Warren Instigator 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. Saw — sacrifices a creature
7. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Path of Mettle // Metzali, Tower of Triumph — triggers
10. Total War — kills a creature

180 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 (Warren Instigator is one).

When Warren Instigator blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Barrow-Blade — strips abilities
4. Heat of Battle — deals 1 damage
5. Battle Strain — deals 1 damage
6. Favor of the Woods — gains you 3 life
7. Tide of War — sacrifices a creature
8. Dead-Iron Sledge — kills a creature
9. Dwindle — kills a creature
10. Shield of the Righteous — triggers

18 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 (Warren Instigator is one).

When Warren Instigator attacks:

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

a creature deals combat damage — 17,934 cards in the game can cause this (Warren Instigator is one).

When Warren Instigator deals combat damage:

1. Locutus of Borg — makes a token
2. Antagonist Incorporator — makes a token
3. Hive Mind Coprocessor — makes you lose life

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

a creature is cast — 18,010 cards in the game can cause this (Warren Instigator is one).

When Warren Instigator is cast:

1. Primeval Bounty — makes a token
2. Bloodbond March — brings a card back
3. Dancing from Dark to Dawn — puts that spell's mana value counters on a creature
4. Endrek Sahr, Master Breeder — makes that spell's mana value tokens

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

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

1. Goblin Goliath — When Goblin Goliath enters thanks to Warren Instigator, it makes a token
2. Slash, Reptile Rampager — When a Goblin enters thanks to Warren Instigator, Slash, Reptile Rampager deals 2 damage
3. Ray Fillet, Wave Warrior — When Warren Instigator enters, Ray Fillet, Wave Warrior puts a counter on itself
4. Bess, Soul Nourisher — When Warren Instigator enters, Bess, Soul Nourisher puts a +1/+1 counter on itself
5. The Neutrinos — When a Goblin enters thanks to Warren Instigator, The Neutrinos gets +1/+0
6. Wingnut, Bat on the Belfry — When a Goblin enters thanks to Warren Instigator, Wingnut, Bat on the Belfry grants flying, haste and menace
7. Aetherstorm Roc — When a Goblin enters thanks to Warren Instigator, Aetherstorm Roc puts a counter on a permanent you control
8. Raphael, Most Attitude — When a Goblin enters thanks to Warren Instigator, Raphael, Most Attitude exiles a card from your library

303 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 (Warren Instigator is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a Goblin enters thanks to Warren Instigator, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself
2. Muxus, Goblin Grandee — When Muxus, Goblin Grandee enters thanks to Warren Instigator, it puts a Goblin onto the battlefield

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