All Might, #1 Hero

Other Heroes you control get +1/+1.
All Might, Symbol of Peace enters the battlefield
with a +1/+1 counter for each Hero on the battlefield and in your graveyard.
One for All
If this creature would die, you may move all it's
+1/+1 counters onto a new creature under your control. That creature gains all abilities this
creature has. Exile this card.