Gravity Behemoth [CP08-EN001] Ultra Rare Adventure Set: Dimension of Chaos Card

Set: Dimension of Chaos Card type: Ritual/Effect Monster Rarity: Ultimate Rare Attack: 3000 Defense: 2500 You can Ritual Summon this card with "Super Soldier Ritual"

When Combustible Gearhulk enters the battlefield

Set: Modern Masters Type: Artifact Creature — Beast Rarity: Rare Cost: {2} Sacrifice an artifact: Put a +1/+1 counter on Arcbound Ravager

you can Normal Summon this card without Tributing

and if you do that

Gravity Behemoth [CP08-EN001] Ultra Rare Adventure Set: Dimension of Chaos CardSet: Champion Pack 8 Card type: Effect Monster Rarity: Ultra Rare Attack: 2300 Defense: 2000 If it is not the first turn of the Duel and there are no cards on the field, you can Normal Summon this card without Tributing. You can destroy all Field Spell Cards on the field. This card cannot attack the turn you activate this effect.