Buno, Master Artificer

Affinity for Artifacts (This spell costs {1} less to cast for each artifact you control.)

Artifact creatures you control have menace.

You may cast artifact spells as though they had flash.

{1}{t} At the beginning of your end step, you may search your library for an artifact card with mana value less than or equal to the number of artifacts you control. Exile it. You may cast it until the end of your next turn.