Trinisphere [Darksteel] 1HP187 Whenever a creature with power

Whenever a creature with power 4 or greater enters the battlefield under your control

Set: Doctor Who Type: Legendary Creature — Human Soldier Advisor Rarity: Rare Cost: {3}{U} Mentor (Whenever this creature attacks

Remove an indestructible counter from Arwen: Another target creature gains indestructible until end of turn

shuffle it into its owner's library

Set: XY: Black Star Promos Type: Dragon Rarity: Promo Retreat cost: Colorless

Trinisphere [Darksteel] 1HP187 Whenever a creature with powerSet: 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.)