Dream Island

Floor 1-9: Each floor gives you 2 ores (Green,Blue,Black, or Red) and 1 Spiral Fragment.

Head Cleaning Maid : at the start of each turn the first two cards in your hand are summoned

to the first two empty slots on your's or the opponent's side of the field. 50/50 chance.

Kana.DTD at the start of each turn send all the enemy's cards on the field to the bottom of the deck.

Rewards:

Rio gives 3 Spiral Fragment, 1 Book, and 1 Cat Doll.

Beating the dungeon 10 times gives Office Chief Esprit.