Miyushi, Crimson Geisha

Whenever you play a Red spell, you may pay {r}. If you do create a 2/1 red and black Mantis
token.
Whenever you play a Black spell, you may pay {b}. If you do put a -1/-1 counter on Target
creature your opponents control.
{t}{2}{b/r}{b/r} Exile an Instant or Sorcery from your Graveyard. Until end of turn you may cast that
spell without paying it's Mana cost.