Warren Instigator 
Creature — Goblin Berserker
$12.79 #5632 0.53 16.9 years
Double strike
Whenever this creature deals damage to an opponent, you may put a Goblin creature card from your hand onto the battlefield.
Click a line or tag to filter
Cards similar to Warren Instigator expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Goblin Lackey91%
$9.28↓#48540.5927.9 years↑
"Whenever this creature deals damage to a player, you may put a Goblin permanent card from your hand onto the battlefield."
Boggart Mob75%
$4.10↓#14306↓0.23↓18.9 years↑
"Whenever a Goblin you control deals combat damage to a player, you may create a 1/1 black Goblin Rogue creature token."
Auntie's Hovel71%
$7.94↓#10489↓0.13↓18.9 years↑
"As this land enters, you may reveal a Goblin card from your hand. If you don't, this land enters tapped."
Cabal Slaver70%
$0.26↓#25500↓0.13↓23.9 years↑
"Whenever a Goblin deals combat damage to a player, that player discards a card."