Septic Rats {1}{B}{B}
Creature — Phyrexian Rat
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever this creature attacks, if defending player is poisoned, it gets +1/+1 until end of turn.
click a line to search just that ability, click more to combine them
Cards that do something similar 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.
Reckless Pangolin 91%
$0.12#31018
"Whenever this creature attacks, it gets +1/+1 until end of turn."
The Long Reach of Night // Animus of Night's Reach 90%
$0.22#11099
"Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the number of creature cards in defending player's graveyard."
+1 more matching line
Genestealer Locus 90%
$0.23#19693
"Whenever a creature attacks one of your opponents, it gets +0/+1 until end of turn."
Heir of the Wilds 89%
$0.24#16000
"Whenever this creature attacks, if you control a creature with power 4 or greater, this creature gets +1/+1 until end of turn."
Sickle Dancer 89%
$0.04#30874
"Whenever this creature attacks, if your team controls another Warrior, this creature gets +1/+1 until end of turn."
Slimy Piper 88%
$0.28#19663
"Whenever this creature attacks, it gets +1/+1 until end of turn. If you control four or more creatures, it gets +2/+2 and gains indestructible until end of turn instead."
Thrashing Frontliner 88%
$0.07#27823
"Whenever this creature attacks a battle, it gets +1/+1 until end of turn."
Redemptor Dreadnought 88%
$0.34#16858
"Whenever this creature attacks, if a card is exiled with it, it gets +X/+X until end of turn, where X is the power of the exiled card."
Impetuous Protege 87%
$0.19#27019
"Whenever this creature attacks, it gets +X/+0 until end of turn, where X is the greatest power among tapped creatures your opponents control."
Attack-in-the-Box 87%
$0.17#18165
"Whenever this creature attacks, you may have it get +4/+0 until end of turn. If you do, sacrifice it at the beginning of the next end step."
Venomsac Lagac 87%
$0.13#19031
"Whenever this creature attacks while saddled, it gets +0/+3 until end of turn."