Lightbulb, Izzet idealist

cards with the Izzet water mark you cast cost {1}{u/r}{u/r} less to cast.
cards without the Izzet water mark cards your opponents cast cost {1}{p/r}{p/u}more to cast.
Flying, Hexproof, Haste
when Lightbulb, Izzet Idealist enters the battlefield, exile target permanent: Lightbulb,
Izzet Idealist deals 4 damage to any target.