Mizzoles, Ewee's Brightmage

Flying, Flash
Whenever Mizzoles, Ewee's Brightmage attacks,
reveal the top two cards of your library and flip
two coins, if both results are heads, exile the first
card and you may cast it without paying its mana
cost this turn. If both results are tails, exile the
second card, you gain life equal to its converted
mana cost. Put the other revealed cards on the
bottom of your library in any order.