Metatron, Follower of God

Flying, vigilance
{1} {w} {w} {t}: Hamaon — Choose target creature,
then roll a d20. If the number is equal or lower
than the chosen creature's toughness, destroy it.
If the chosen creature is black, exile it instead.
{x}{r}{r}{t}: Fire of Sinai — Metatron deals X
damage to all creatures target opponent controls.