Trinisphere [Darksteel] New Phyrexia Promos Set: Shadows over Innistrad Prerelease

Set: Shadows over Innistrad Prerelease Promos Type: Enchantment Rarity: Rare Cost: {1}{G} Creatures you control have "{T}: Add one mana of any color

Set: Guru Type: Basic Land — Plains Rarity: Rare ({T}: Add {W}

return the first card to the battlefield under its owner's control at the beginning of the next end step

you may pay {0} rather than pay this spell's mana cost

When Ancestral Knowledge leaves the battlefield

Trinisphere [Darksteel] New Phyrexia Promos Set: Shadows over Innistrad PrereleaseSet: Darksteel Type: Artifact Rarity: Rare Cost: {3} As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)