Trinisphere [Darksteel] Kobold Set: Mirrodin Type: Enchantment —

Set: Mirrodin Type: Enchantment — Aura Rarity: Uncommon Cost: {1}{B}{B} Enchant artifact

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

Domain — At the beginning of your upkeep

The March of the Machine: The Aftermath Epilogue Booster Box contains 24 March of the Machine: The Aftermath Epilogue Boosters

join in brotherhood

Trinisphere [Darksteel] Kobold Set: Mirrodin Type: Enchantment —Set: 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.)