Casting Deadlock

This spell costs {3} less to cast and can't be
countered if an opponent has cast an instant
or sorcery spell this turn.
Target opponent can't cast instant or sorcery
spells unless they pay 4 life or discard a card
until their next upkeep.
The Cult of Rakdos was fed up with the Azorious Senate. The next time the two factions met, the Azorious found themselves caught off guard.