Melisandre, Red Priestess

Instant and sorcery spells you control cost X less
to cast, where X is your devotion to red.
Instant and sorcery spells you control have
flashback. Their flashback cost is equal to their
mana cost. If a spell was cast this way, exile it.
Every time you cast your third instant or sorcery spell, red creatures you control gain vigilance
and indestructible until the beginning of the next
end step.