Skeletron Prime

{10} Laser focus: Choose one creature. During your next turn, all damage done to that card is doubled.
{b}{b}{b}{x} Chainsaw Cut: Target X creatures. Place a -3/-0 token on each.
{b}{b}{b}{b}{x} Bomb Barrage: Target one creature. Place a
-X/-0 on it, and a -3/-0 token on
creatures next to it.