Ayara's Oathsworn (Halo Foil) (MAT-195) - March of the Machine: The Aftermath: (Showcase) Foil

Menace
Whenever this creature deals combat damage to a player, if it has fewer than four +1/+1 counters on it, put a +1/+1 counter on it. Then if it has exactly four +1/+1 counters on it, search your library for a card, put it into your hand, then shuffle.