Cursed Seal of the Forbidden Spell [IOC-EN049] Common Synchro/Effect Monster if another Effect Monster is

if another Effect Monster is Special Summoned to your field (except during the Damage Step): You can add 1 "Ursarctic" or "Drytron" monster from your Deck to your hand

Set: Dark Revelation Volume 1 Card type: Counter Trap Rarity: Ultra Rare Discard 1 card from your hand

If you have a monster in your Graveyard that is not a "Mecha Phantom Beast" monster

if the equipped monster attacked: the attack target loses ATK equal to the ATK of the equipped monster

Set: Legendary Dragon Decks Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 100 When this card is Normal Summoned: You can add 1 Spell/Trap from your Deck to your hand

Cursed Seal of the Forbidden Spell [IOC-EN049] Common Synchro/Effect Monster if another Effect Monster isSet: Invasion of Chaos Card type: Counter Trap Rarity: Common Attack: 0 Defense: 0 Discard 1 Spell Card from your hand to negate the activation and the effect of a Spell Card and destroy it. Your opponent cannot activate Spell Cards of the same name (including the Spell Card that is destroyed by this card's effect) during the rest of this Duel.