Aiden, Warden of Souls

At the beginning of each upkeep, scry X, where
X is the number of different converted mana
costs among permanents on the battlefield.
{w}{u}: Reveal the top card of your library. You
gain life equal to that card's converted mana cost.
{b}{r}: Reveal the top card of your library. Target opponent loses life equal to that card's converted
mana cost.