Jila, God of Peace

This spell costs {1} less to cast for each 1 life
you've gained this turn.
Whenever Jila, God of Peace enters the
battlefield or attacks, you may return up to
one other target creature you control to its
owner's hand. If you do, you gain life equal to
its power plus its toughness.
When Jila dies, return it to its owner's hand at
the beginning of the next end step.