Gungnir, Dragon of the Ice Barrier [DT03-EN040] Ultra Rare OTS Tournament Pack 6 you can send this card

you can send this card from your hand to the Graveyard to select 1 face-up Effect Monster your opponent controls

When this card is sent to the Graveyard to activate a WATER monster's effect: Add 1 Sea Serpent-Type monster from your Deck to your hand

Set: Dark Revelation Volume 4 Card type: Effect Monster Rarity: Rare Attack: 1600 Defense: 1200 Inflict 400 damage to your opponent each time you activate a Normal Spell Card

This card gains 100 ATK for each Monster Card in your Graveyard

Gungnir, Dragon of the Ice Barrier [DT03-EN040] Ultra Rare OTS Tournament Pack 6 you can send this cardSet: Duel Terminal 3 Card type: Synchro Effect Monster Rarity: Ultra 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 select the same number of cards your opponent controls. Destroy the selected cards.