Riolu (79/113) [Black & White: Legendary Treasures] The Dark Side of Dimensions Movie Pack You can only use this

You can only use this effect of "D/D Necro Slime" once per turn

If this card is Normal or Special Summoned: You can add 1 "Dark Magician" from your Deck to your hand

when a Ritual Monster is Ritual Summoned: You can target 1 monster in your Graveyard that was Tributed for the Ritual Summon

when an attack is declared involving this card and an opponent's monster: You can detach 1 Xyz Material from this card

or if you destroy a card(s) on the field with a "SPYRAL" monster's effect you control: You can draw 1 card

Riolu (79/113) [Black & White: Legendary Treasures] The Dark Side of Dimensions Movie Pack You can only use thisSet: Black & White: Legendary Treasures Type: Fighting Rarity: Uncommon Retreat cost: Colorless