High Ground allows the Slivers to copy BOTH of Two-Headed Dragon's abilities.

It's Over Anakin! The Slivers have the High Ground! x.X

You UNDERESTIMATE MY--wait, did you say SLIVERS?! JEEZ I signed up with the wrong Sith :P

(Later, on Coruscant)

WHAT did you do to p iss off the SLIVERS???......my master?

Well, now, there's a funny story about that....I maybe once accidentally crushed a larval Sliver Queen?

YOU WHAT?!?!? .......that's just plain stupid. You handle the Slivers yourself, I don't take suicide missions. I'm joining the Rebels. :P