[Promo] [RF] Volzar, the Lightning Rod - LGS334

Card Name: Volzar, the Lightning Rod

If you control an aura permanent with Sigil in its name, this costs {r} less to activate.

Once per Turn Instant — {r}: Amp X, where X is the number of Lightning cards you've played this turn. (The next time you would deal arcane damage this turn, instead deal that much plus X.)