Renegade Krasis {1}{G}{G}
Creature — Beast Mutant
Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Whenever this creature evolves, put a +1/+1 counter on each other creature you control with a +1/+1 counter on it.
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Cards that do something similar expected a card that isn't here?
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Generous Pup 90%
$5.32#5798
"Whenever one or more +1/+1 counters are put on this creature, put a +1/+1 counter on each other creature you control. This ability triggers only once each turn."
High Sentinels of Arashin 90%
$0.21#14978
"This creature gets +1/+1 for each other creature you control with a +1/+1 counter on it."
Bellowing Aegisaur 89%
$0.30#7788
"Whenever this creature is dealt damage, put a +1/+1 counter on each other creature you control."
Thunderwolf Cavalry 85%
$0.36#15063
"Whenever this creature deals combat damage to a player, put a +1/+1 counter on each other creature you control."
Bounding Felidar 84%
$0.18#10971
"Whenever this creature attacks while saddled, put a +1/+1 counter on each other creature you control. You gain 1 life for each of those creatures."
Avatar of the Resolute 83%
$0.30#16559
"This creature enters with a +1/+1 counter on it for each other creature you control with a +1/+1 counter on it."
Mirror Box 81%
$5.37#1687
"Each nontoken creature you control gets +1/+1 for each other creature you control with the same name as that creature."
Sheriff of Safe Passage 80%
$0.13#16985
"This creature enters with a +1/+1 counter on it plus an additional +1/+1 counter on it for each other creature you control."