With transmute artifact the you're given two options one Use it to get a mondo bizzaro artifact in play or use it as an Entomb for artifacts since it makes you put it in the yard if you don't pay the cost, but the most effective build i've seen would be using it with the affinity cards prefferablly Myr Enforcer and Frogmite, their wicked awesome high converted mana cost allows you to grab fun artifacts from your deck and beat down your opponent.