Dr. Akage Ritsuko

Whenever you cast an artifact spell, you gain
{e} (An energy counter).
{t}, pay {e}: Target creature gains +1/+0 and
gains trample and haste until end of turn.
{t}, pay {e}{e}{e}: Draw a card.
{t}, pay {e}{e}{e}{e}{e}: Return target artifact
card from your graveyard to the battlefield tapped.