Gyarados (20/98) (Cosmos Holo) [XY: Ancient Origins] BT2-004 You can only use this

You can only use this effect of "Gullveig of the Nordic Ascendant" once per turn

you may digivolve 1 of your Digimon into a Digimon card in your hand that can digivolve for a digivolution cost of 3 or less without paying its digivolution cost

Set: Promotional Cards Card type: Digimon Rarity: Promotional Digi type: Cyborg Play Cost: 11 Form: Mega Attribute: Virus Digivolve Cost: 3 Digivolve Cost Level: 5 [Main] ＜Digi-Burst 2＞ (Trash 2 of this Digimon's digivolution cards to activate the effect below

and those monsters cannot be destroyed by battle

• 1x Foil Etched Retro Frame Talisman of Conviction

Gyarados (20/98) (Cosmos Holo) [XY: Ancient Origins] BT2-004 You can only use thisSet: XY: Ancient Origins Type: Water Rarity: Promo Retreat cost: Colorless,Colorless,Colorless