A weapon I'd like to see in SC2
A weapon that would be very cool for one of the ships to have is what I call a "Gravitic Mine". It would be a very fun weapon in a top-down space combat game.
A Gravitic Mine only does a small amount of damage when it detonates, but creates a weak short-lived singularity. This creates a brief (2 or 3 second) gravity well that both slows and slightly alters the course of the target. It is an excellent weapon for deterring and escaping pursuit. A very fun ship could be based around it having this ability.
This weapon would be most appropriately used on a medium/average speed ship.