I recently built a deck that had spell canceller in it. along with Swords of reviling light was played before I summoned spell canceller. Spell Canceller effect is As long as this card remains face-up on the field, Spell Cards cannot beactivated. The effects of all Spell Cards are also negated. Yet it would not let me attack. Then black horn of the heave has the effect to negate a special summons of monster your opponent has just summoned yet it would only let me negate the special summons of monster reborn. Both are good cards when working the way they are meant to. If anyone knows of a way to see if they are going to patch the game to fix these cards or know of other cards that are broken compared to the way they work in the tcg game let us know here.