Clockwork Assistant

Stash 2 — When Clockwork Assistant enters the battlefield, exile the top two cards of your library facedown and place them under it.

When Clockwork Assistant dies, look at the cards stashed under Clockwork Assistant. Put one into your hand, and the other into your graveyard. Instant and sorceries in your graveyard with mana value 1 gain flashback {u} until the end of turn.

"I find golems make better assistants than the living, much easier to repair when things go wrong!"
-The Tinker