Unbiased Guildpact

Flying, Protection from White, Black and Green
Whenever you cast a spell that's exactly two colors,
if those colors aren't red and blue, Scry 1.
Unbiased Guildpact deals 1 damage to any target.
Whenever you cast a spell that's exactly two colors,
if those colors are red and blue, draw a card.
Unbiased Guildpact deals 3 damage to any target
and you gain 3 life.