Mist Valley Apex Avian [DT02-EN079] Rare Beast Dragon/X-Antibody You can only use each

You can only use each effect of "Infinitrack Trencher" once per turn

you may trash 2 of this Digimon's digivolution cards to end the attack

its ATK becomes 3000

and 1 card your opponent controls

Set: Astral Pack 3 Card type: Effect Monster Rarity: Ultimate Rare Attack: 1400 Defense: 0 When this card inflicts battle damage to your opponent: You can Special Summon 1 Level 4 or lower "Atlantean" Sea Serpent-Type monster from your Deck

Mist Valley Apex Avian [DT02-EN079] Rare Beast Dragon/X-Antibody You can only use eachSet: Duel Terminal 2 Card type: Effect Monster Rarity: Rare Attack: 2700 Defense: 2000 When an effect is activated, you can return 1 face up "Mist Valley" card you control. Return that "Mist Valley" card to your hand and negate that activation and destroy the card.