Bountiful Game

At the beginning of your upkeep, if you control
another bird, another elk and another rabbit,
transform Bountiful Game.
Whenever another attacking or blocking creature
leaves the battlefield, its owner looks at the top
five cards of your library. They put up to one
bird, one elk and one rabbit creature from
among those cards onto the battlefield under
their control. Do this only once each turn for
each player.