Legerdemain

{2}{U}{U} · Sorcery

Exchange control of target artifact or creature and another target permanent that shares one of those types with it. (This effect lasts indefinitely.)

Motor: se resuelve a mano

Rulings (1)

You can’t cast Legerdemain unless both targets share a type at that time. It will also check to make sure they share a type as it resolves. If they no longer do so, the exchange will not occur.
Wizards of the Coast · 2008-04-01