Plagued Flame, Frelan

Empyrean - (At the start of the game, if this is
outside of the game, or in your sideboard, this counts
as an Empyrean.)
Haste, Wither
Whenever Frelan attacks, you may sacrifice
another attacking creature. If you do, put X -1/-1 counters on target creature, where X is the sacrificed creature's power.