Tezzeret the Seeker
Shards of Alara — mythic
Legendary Planeswalker — Tezzeret
+1: Untap up to two target artifacts.
?X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
?5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.