Trinisphere [Kaladesh Inventions] Forest where X is the number

where X is the number of cards in their hand minus 4

exile it instead of putting it into its owner's graveyard

sacrifice Groundbreaker

Set: Unlimited Edition Type: Creature — Human Knight Rarity: Uncommon Cost: {B}{B} First strike (This creature deals combat damage before creatures without first strike

Trinisphere [Kaladesh Inventions] Forest where X is the numberSet: Kaladesh Inventions 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.) "This exhibition of Nehra's Threshold Principle must be expropriated and examined for its potential