Contract to Kill
Take out a contract on a target hero for a duration. The contract takes extra bullet damage and extra damage from Cold Metal's missiles. You have no move speed penalty while shooting at the contract and no aim speed penalty at the contract while moving.
Charged Rocket
Hold to charge then fire a rocket that travels faster the longer it's charged. Upon impact, it explodes into a burst of tactical heat-seeking missiles.
Cold Metal Killer
Launch a fan of knives in a cone in front of Cold Metal, slowing enemies upon impact.
Impenetrable Cube
Fold up into an impenetrable cube for a duration, unable to shoot or take damage, then explode into a flurry of tactical heat-seeking missiles.