Animating Gargoyle

Reactive {5} (You may cast this spell for its reactive
cost as though it had flash.)
When Animating Gargoyle enters the battlefield,
if it was cast for its reactive cost, it becomes a 4/4 Gargoyle artifact creature with flying until end of
turn.
{2}: Animating Gargoyle becomes a 4/4 Gargoyle artifact creature with flying until end of turn.