Valstina of Lake Lanamoore

Whenever Valstina of Lake Lanamoore attacks,
put a bite counter on target creature. Then, gain
control of all creatures with bite counters on
them until end of turn, and untap them. They
gain haste and lifelink until end of turn.
Whenever a creature with a bite counter on
it dies, create a 2/2 black zombie creature
token onto the battlefield under your
control.