Azalea, Ace in the Hole [HER018-P] (Promo) 1st Edition Rainbow Foil Human Soldier Ranger Tawnos finally cracked the puzzle:

Tawnos finally cracked the puzzle: the strange structures did not house Mishra's malevolent creations but were themselves among his creations

you can discard 1 card to add 1 Iron Core of Koa'ki Meiru from your Deck to your hand

Set: Spell Ruler Card type: Equip Spell Rarity: Ultra Rare Increase the ATK of a monster equipped with this card by 1000 points

Set: Oversize Cards Rarity: Rare FlyingSacrifice a creature to give Fallen Angel +2/+1 until end of turn

Azalea, Ace in the Hole [HER018-P] (Promo) 1st Edition Rainbow Foil Human Soldier Ranger Tawnos finally cracked the puzzle:Set: Promo Finish: Rainbow Foil Type: Hero Rarity: Promo Class: Ranger Life: 40 Intellect: 4 Once per Turn Action 0: Put a card from your arsenal on the bottom of your deck. If you do, put the top card of your deck face up into your arsenal. If it's an arrow card, it gains dominate until end of turn. Go again (The defending hero can't defend the attack with more than 1 card from their hand.)