Overmaster

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

You may cast this spell as though it had flash if you pay 2 more to cast it. (You may cast it any time you could cast an instant.) Create a 1/1 green Saproling creature token for each creature you control.

If a spell or ability an opponent controls causes you to discard this card, put it onto the battlefield with two +1/+1 counters on it instead of putting it into your graveyard.

T: Destroy target tapped creature.

At the beginning of your upkeep, you may put a petal counter on this artifact. T, Sacrifice this artifact: Add X mana of any one color, where X is the number of petal counters on this artifact.

Return target permanent card with mana value 3 or less from your graveyard to the battlefield. If this spell was cast from a graveyard, you may copy this spell and may choose a new target for the copy. Flashback 4W (You may cast this card from your graveyard for its flashback cost. Then exile it.)

R: You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice the creature at the beginning of the next end step.

Destroy target nonartifact, nonblack creature. It can't be regenerated.