Bess, Soul Nourisher {1}{G}{W}
Legendary Creature — Human Citizen
Whenever one or more other creatures you control with base power and toughness 1/1 enter, put a +1/+1 counter on Bess.
Whenever Bess attacks, each other creature you control with base power and toughness 1/1 gets +X/+X until end of turn, where X is the number of +1/+1 counters on Bess.
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.
Qala, Ajani's Pridemate 92%
$0.37#7835
"Whenever this card attacks, other attacking creatures you control get +X/+0 until end of turn, where X is the number of counters on this card."
Zhang He, Wei General 92%
$92.89#26463
"Whenever this card attacks, each other creature you control gets +1/+0 until end of turn."
Syr Alin, the Lion's Claw 92%
$0.11#14845
"Whenever this card attacks, other creatures you control get +1/+1 until end of turn."
Jurin, Leading the Charge 88%
$2.06#15432
"Whenever this card attacks, each creature you control attacking a player gets +1/+0 until end of turn for each creature that player controls."
Márton Stromgald 88%
#15594
"Whenever this card attacks, other attacking creatures get +1/+1 until end of turn for each attacking creature other than this card."
Firebird, Blazing Ranger 88%
$0.34#18766
"Whenever this card attacks, other attacking creatures get +X/+0 until end of turn, where X is this card's power."
Wingnut, Bat on the Belfry 87%
$0.16#22585
"Whenever this card attacks, each other attacking creature gets +1/+0 until end of turn."
Finneas, Ace Archer 87%
$0.32#4373
"Whenever this card attacks, put a +1/+1 counter on each other creature you control that's a token or a Rabbit. Then if creatures you control have total power 10 or greater, draw a card."
Tuya Bearclaw 86%
$0.19#10264
"Whenever this card attacks, it gets +X/+X until end of turn, where X is the greatest power among other creatures you control."
Captain America, Wings of Freedom 84%
$0.36#15416
"Whenever this card attacks, each other Hero you control gets +X/+X until end of turn, where X is this card's toughness."
Hulk, Brutal Brawler 84%
$41.84#19847
"Whenever this card attacks, put a +1/+1 counter on each other creature you control."
Tori D'Avenant, Fury Rider 83%
$0.26#6018
"Whenever this card attacks, all other attacking creatures you control get +1/+1 until end of turn. Other red attacking creatures you control gain trample until end of turn. Untap each other white attacking creature you control."
Telim'Tor 83%
$0.86#28981
"Whenever this card attacks, all attacking creatures with flanking get +1/+1 until end of turn."
Muxus, Goblin Grandee 83%
$13.62#4011
"Whenever this card attacks, it gets +1/+1 until end of turn for each other Goblin you control."
Celes, Rune Knight 82%
$1.56#5241
"Whenever one or more other creatures you control enter, if one or more of them entered from a graveyard or was cast from a graveyard, put a +1/+1 counter on each creature you control."
Namor, Atlantean King 81%
$0.69#21886
"Whenever this card attacks a player who has more life than you, other creatures you control attacking that player get +2/+0 until end of turn."
Sigil of Valor 81%
$0.18#8438
"Whenever equipped creature attacks alone, it gets +1/+1 until end of turn for each other creature you control."
Butch DeLoria, Tunnel Snake 81%
$0.30#11274
"Whenever this card attacks, it gets +1/+1 until end of turn for each other Rogue and/or Snake you control."
Goreclaw, Terror of Qal Sisma 81%
$1.68#677
"Whenever this card attacks, each creature you control with power 4 or greater gets +1/+1 and gains trample until end of turn."
Akroma, Vision of Ixidor 80%
$10.09#5097
"At the beginning of each combat, until end of turn, each other creature you control gets +1/+1 if it has flying, +1/+1 if it has first strike, and so on for double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, vigilance, and partner."