Gaea's Courser {4}{G}
Creature — Centaur Soldier
Whenever this creature attacks, if there are three or more creature cards in your graveyard, draw a card.
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Cards that do something similar expected a card that isn't here?
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Werewolf Pack Leader 88%
$0.39#8342
"Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, draw a card."
Eternal of Harsh Truths 87%
$0.22#17420
"Whenever this creature attacks and isn't blocked, draw a card."
Ophidian 85%
$0.43#26493
"Whenever this creature attacks and isn't blocked, you may draw a card. If you do, this creature assigns no combat damage this turn."
Angelic Sell-Sword 84%
$0.44#8244
"Whenever this creature attacks, if its power is 6 or greater, draw a card."
Firemane Commando 82%
$0.96#1863
"Whenever another player attacks with two or more creatures, they draw a card if none of those creatures attacked you."
Ogre Marauder 81%
$0.25#24804
"Whenever this creature attacks, it gains "this creature can't be blocked" until end of turn unless defending player sacrifices a creature of their choice."
Cheering Fanatic 81%
$0.27#19397
"Whenever this creature attacks, choose a card name. Spells with the chosen name cost {1} less to cast this turn."
Grothama, All-Devouring 81%
$0.64#6698
"Other creatures have "Whenever this creature attacks, you may have it fight this card.""
Jon Irenicus, Shattered One 80%
$0.33#7523
"Whenever a creature you own but don't control attacks, you draw a card."
Trouble in Pairs 80%
$28.59#630
"Whenever an opponent attacks you with two or more creatures, draws their second card each turn, or casts their second spell each turn, you draw a card."
Smirking Spelljacker 80%
$2.79#6873
"Whenever this creature attacks, if a card is exiled with it, you may cast the exiled card without paying its mana cost."
Conundrum Sphinx 80%
$0.32#17473
"Whenever this creature attacks, each player chooses a card name. Then each player reveals the top card of their library. If the card a player revealed has the name they chose, that player puts it into their hand. If it doesn't, that player puts it on the bottom of their library."