Ogdoabyss, the Ogdoadic Overlord (Collector's Rare) [ANGU-EN009] Collector's Rare UPR013 Set: Ancient Guardians Card type:

Set: Ancient Guardians Card type: Effect Monster Rarity: Collector's Rare Attack: 2600 Defense: 0 If your opponent controls more monsters than you do

This card's Synchro Summon cannot be negated

it gains +1 [Power] until end of turn

and if it does

Ogdoabyss, the Ogdoadic Overlord (Collector's Rare) [ANGU-EN009] Collector's Rare UPR013 Set: Ancient Guardians Card type:Set: Ancient Guardians Card type: Effect Monster Rarity: Collector's Rare Attack: 3100 Defense: 2200 If this card is in your GY: You can Tribute 3 monsters; Special Summon this card. Once, while this card is face up on the field (Quick Effect): You can send all monsters from the field to the GY, except face up monsters Special Summoned from the GY. You can only use each effect of "Ogdoabyss, the Ogdoadic Overlord" once per turn.