Slimy Piper {1}{G}
Creature — Fungus Bard
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. (Damage and effects that say "destroy" don't destroy it.)
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 95%
$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 92%
$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."
Genestealer Locus 89%
$0.23#19693
"Whenever a creature attacks one of your opponents, it gets +0/+1 until end of turn."
Impetuous Protege 89%
$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."
Lurking Nightstalker 89%
$0.25#31306
"Whenever this creature attacks, it gets +2/+0 until end of turn."
Borderland Marauder 89%
$0.07#22582
"Whenever this creature attacks, it gets +2/+0 until end of turn."