Loki, Lord of the Aesir [STOR-EN039] Ultimate Rare BT12-094 You must also Tribute monsters

You must also Tribute monsters from your hand or field and/or banish "Blue-Eyes White Dragon" or "Dark Magician" from your Graveyard

Set: Structure Deck: Powercode Link Card type: Normal Spell Rarity: Common Send 1 monster from your hand to the GY

Then you can destroy 1 monster on the field

have this card or 1 monster it points to gain ATK equal to the ATK of that battled opponent's monster

and each booster contains the following 15 cards:

Loki, Lord of the Aesir [STOR-EN039] Ultimate Rare BT12-094 You must also Tribute monstersSet: Storm of Ragnarok Card type: Synchro Effect Monster Rarity: Ultimate Rare Attack: 3300 Defense: 3000 1 "Nordic Alfar" Tuner + 2 or more non Tuner monsters. Once per turn, when your opponent activates a Spell Trap Card during your Battle Phase, you can negate its activation and destroy it. During the End Phase, if this face up card on the field was destroyed by your opponent's card (either by battle or by card effect) and sent to the Graveyard