The third of the Anti-Spam cards is confirmed for the OCG
EP19-JP068 冥王結界波 Dark Ruler Barrier Wave (TCG: Dark Ruler No More)
Normal Spell Card
Neither player can activate monster effects in response to this card’s activation.
(1) Negate the effects of all face-up monsters your opponent currently controls, until the end of this turn, also, for the rest of this turn after this card resolves, your opponent takes no damage.