Venorgose, Undying Flame

Flying, Rebate (This creature costs {2} less to cast for
each time you have cast your commander from the
command zone this way.)
You may cast Venorgose, Undying Flame from
your graveyard or from exile.
Whenever you cast a spell with converted mana
cost 4 or less, copy it. You may choose new
targets for the copy.