Dark Spirit's Mastery [LED5-EN004] Ultra Rare Skeleton Whenever an opponent taps a

Whenever an opponent taps a land for mana

During the End Phase of this turn

but shuffle them into the Deck during the End Phase

"If it is meant to be nothing but a machine

Dark Spirit's Mastery [LED5-EN004] Ultra Rare Skeleton Whenever an opponent taps aSet: Legendary Duelists: Immortal Destiny Card type: Normal Spell Rarity: Ultra Rare Discard 1 card; add 1 " Destiny Board " or 1 Level 8 Fiend monster from your Deck or GY to your hand. You can banish this card from your GY, except the turn this card was sent to the GY; place any number of "Destiny Board" and or "Spirit Message" cards with different names from your hand or GY on the bottom of the Deck in any order, then draw the same number of cards.