Gungnir, Dragon of the Ice Barrier [SDFC-EN044] Super Rare P-20 neither player can Xyz Summon

neither player can Xyz Summon using monsters with a different Level from the Monster Revealed as Xyz Material

Set: Legendary Collection 3: Yugi's World Card type: Effect Monster Rarity: Common Attack: 1000 Defense: 1000 Each time your opponent draws a card(s)

but also for ramming its enemies

Set: Duel Power Card type: Tuner/Effect Monster Rarity: Ultra Rare Attack: 100 Defense: 300 For a Synchro Summon

Special Summon 1 "Seed Token" (Plant-Type/EARTH/Level 1/ATK 0/DEF 0) to your opponent's side of the field in Defense Position

Gungnir, Dragon of the Ice Barrier [SDFC-EN044] Super Rare P-20 neither player can Xyz SummonSet: Structure Deck: Freezing Chains Card type: Synchro Effect Monster Rarity: Super Rare Attack: 2500 Defense: 1700 1 Tuner + 1 or more non Tuner WATER monsters Once per turn: You can discard up to 2 cards to the Graveyard to target the same number of cards your opponent controls; destroy them.