Lemm, Relic Seeker

Lemm, Relic Seeker comes into play with 5 geo counters on it.
{t}, Remove X geo counters from Lemm, Relic
Seeker: Search your library for an artifact card
with converted mana cost equal to X and put it
into your hand. Then shuffle your library.
Sacrifice an artifact: Put a geo counter on Lemm,
Relic Seeker.