Nibiru, the Primal Being (Quarter Century Secret Rare) (RA01-EN015) - 25th Anniversary Rarity Collection 1st Edition Number_SOD-EN007 and this card would turn

and this card would turn to face-up attack mode

you can Special Summon 1 "Elemental Hero" monster from your graveyard that was destroyed by battle

destroy all other monsters after damage calculation

Must be Special Summoned by Tributing monsters you control whose combined ATK & DEF is 10

Card TextYour opponent declares a monster Level from 1 to 12

Nibiru, the Primal Being (Quarter Century Secret Rare) (RA01-EN015) - 25th Anniversary Rarity Collection 1st Edition Number_SOD-EN007 and this card would turnTypeRock Effect Monster AttributeLIGHT Level Rank11 ATK DEF3000 600 Card TextDuring the Main Phase, if your opponent Normal or Special Summoned 5 or more monsters this turn (Quick Effect): You can Tribute as many face up monsters on the field as possible, and if you do, Special Summon this card from your hand, then Special Summon 1 "Primal Being Token" (Rock LIGHT Level 11 ATK ? DEF ?) to your opponent's field. (This Token's ATK DEF become the