Bilbo, the Burglar

Fellowship — When another creature that shares
a color with Bilbo, the Burglar enters the battlefield, Bilbo, the Burglar can't be blocked
until the end of turn.
When Bilbo, the Burglar deals damage to a
player or planeswalker, create a Treasure token.
{x},{t}: Exchange control of target artifact you
control and target artifact an opponent controls
with converted mana cost X or less.