Throne of Swords

Whenever a player casts a red spell, you may pay {x}, where {x} is the spell's devotion to red. If you do, Throne of Swords deals damage to that player equal to the casted spell's devotion to red.
_________________________________________
"A throne built upon lives lost and battles won. A throne forged in the heat of battle. The only throne that matters in this world." - Eddard Stark