Trinisphere [Double Masters] Ninth Edition Promos Set: Planechase Planes Type: Plane

Set: Planechase Planes Type: Plane — Kamigawa Rarity: Common Whenever a player casts a spell

Set: Theros Beyond Death Type: Legendary Creature — Merfolk Artificer Rarity: Rare Cost: {1}{U}{R} {T}: Add {C}{C}

Set: Unlimited Edition Type: Creature — Rat Rarity: Common Cost: {2}{B} Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield

Straight forward and un-obtrusive

you may exile that card

Trinisphere [Double Masters] Ninth Edition Promos Set: Planechase Planes Type: PlaneSet: Double Masters Type: Artifact Rarity: Mythic 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.)