Limandri, Doomsday's Augur

Menace, Deathtouch
Whenever Limandri, Doomsday's Augur attacks, put an age counter on it. Search your library for a card with converted mana cost
less than or equal to the amount of age counters on Limandri, Doomsday's Augur
and doesn't have generic mana in its mana cost, reveal it and put it into your hand,
shuffle your library.