Gamabunta, Chief Toad

When Gamabunta, Chief Toad enters the
battlefield or leaves the battlefield, each player
creates a 1/1 green and red Toad creature token.
At the beginning of your upkeep, each player
puts a +1/+1 counter on each toad they control.
At the beginning of your end step, put a +1/+1
counter on each creature you control.