Abyss-sphere [ABYR-EN072] Ultra Rare 168 and your friends may cast

and your friends may cast them with your permission

that player chooses target player who controls more creatures than they do and is their opponent

you may change "target black spell" to "target blue spell

{6}: Transform Nightmare Moon

Abyss-sphere [ABYR-EN072] Ultra Rare 168 and your friends may castSet: Abyss Rising Card type: Continuous Trap Rarity: Ultra Rare Attack: 0 Defense: 0 Special Summon 1 "Mermail" monster from your Deck. Its effects are negated. You cannot activate any Spell Cards. When this card leaves the field, destroy that monster. Destroy this card during your opponent's next End Phase after activation.