Galteth, Incarnate Of Death

When you cast Galteth, Incarnate Of Death {x}{b} is the total amount of attack and {x}{w} is the total amount of health
{t}{4}{b} Kill target creature discluding creatures costing >{7} and Mythic rares
{ut}{1}
{x}{b} Summon x amount of 2/1 Skeleton tokens
{x}{w} Summon x amount of 1/2 Skeleton tokens
Indestructible