Rowan, Fearless Sparkmage
Oracle Text
+1: Up to one target creature gets +3/+0 and gains first strike until end of turn.
−2: Rowan, Fearless Sparkmage deals 1 damage to each of up to two target creatures. Those creatures can't block this turn.
−9: Gain control of all creatures until end of turn. Untap them. They gain haste until end of turn.
The +1 is very aggressive which red likes.
The -2 is versatile. Kills small stuff. Forces your opponent to attack as they'll never get to block. Potentially makes flyers and menacers unblockable.
The -9 ends the game in most situations. Not likely you'll ever need to use it though.