Detonate (Mark Justice) [Pro Tour Collector Set] Timeless Note the type of mana

Note the type of mana spent to pay this activation cost

Set: Unlimited Edition Type: Enchantment Rarity: Rare Cost: {R}{R} Players can't untap more than one creature during their untap steps

Set: Apocalypse Type: Creature — Merfolk Shaman Rarity: Common Cost: {U} {T}: Target land becomes the basic land type of your choice until end of turn

where X is that spell's mana value

and you may spend mana as though it were mana of any type to cast those spells

Detonate (Mark Justice) [Pro Tour Collector Set] Timeless Note the type of manaSet: Pro Tour Collector Set Type: Sorcery Rarity: Uncommon Cost: {X}{R} Destroy target artifact with mana value X. It can't be regenerated. Detonate deals X damage to that artifact's controller.