Bast, Goddess of Fertillity

Convoke
Cat creatures you control have lifelink and
vigilance.
If a Cat creature you control would die, you may
pay {x}, where {x} is equal to its toughness, and
exile it. You may return that creature to the
battlefield under its owner's control. If you don't,
at the beginning of the next end step, return that
card to the battlefield under its owner's control.