Tortoise, 338 Heavy Walker

Crew 4; it stays an artifact creature for as long as the creatures remain tapped
Menace, Intimidate, Heavy Vehicle (does not take damage from Light Weapon abilities), Double Strike
{6}{r} Missle 2.0 : Select X amount of creatures, deal 6 damage divided by X target creatures
{t}{x}{b}{w}{r} Gatling Gun : Select X target creatures and deal X amount of damage to those creatures