Mercane

Sucker--{u}{b},{t}: Until end of turn, all artifacts of target player cost {1} more to cast, activate, attack,
and block.
Preferred Customer--{u}{w},{t}: Until end of turn, all artifacts you control cost {1} less to cast and
activate.
Contraband--{u}{w}{b},{t}: Reveal an artifact card
from outside the game and put it in your hand.