Calamity Ganon

Indestructible, Reach, Trample, Hexproof
Target Laser {5}:Roll a d20,Destroy target NonLegandary creature with converted mana
cost X or less, where X is the die's result.
{r}{r}{r}: Deals 4 damage to target creature an opponent controls. Another target creature you control gains Flying until the end of turn.
Calamity Ganon deals combat damage equal to
half your life total, rounded down.