Mana F**king Your Opponent

Defender (This creature can't attack.) Green spells and blue spells you cast cost less to cast.

White spells you cast cost less to cast. Blue spells you cast cost less to cast. Spells your opponents cast cost more to cast.

Noncreature spells cost more to cast.

Landfall — Whenever a land you control enters, add one mana of any color.

Nonartifact spells cost more to cast.