Swain, Grand Artificer

Tap an untapped artifact you control: Add one
mana of any color to your mana pool.
{u}{b}: Look at target opponent hand. You choose
a creature spell from it. That player discards that
card.
{2}{u}{b}{r}: Return target creature from a graveyard
to the battlefield under your control.That creature loses all types and colors and instead its a colorless artifact creature.