Yep. They can be harnessed into Force Lightning at close quarters in seconds. Luke (boosted by the full force potential of Leia and Jacen) kills Sidious by (I think) reflecting the lightnight back at Sidious for a few seconds, destroying his body. I haven't read it for a long time though, but I think that's how it went.
Well how would the potential backing him up make him more powerful? Really, potential is nice but its skill and force techniques that would matter, unless i'm missing something really big. So if Luke could do it, with help (no matter how much that would be really) then I'm guessing Kreia and Malak might have a shot at it too...
They definitly have more training experience and skill then Luke had at that time, and I still don't really see how potential could destroy somebody... So... But then again perhaps in some strange post ROTJ mumbo jumbo magic crap they can and if thats the case then perhaps Malak and Traya are dead.
But why am I even debating this? I simply don't know enough to say for sure.
Hello Friend, Luke is 55 in DN3. 54 at the start of the series.
Fishy, When Luke beat DE Sidious Luke was temporarily almost three times as powerful as normal. By the time Luke beat Sidious Luke was already stronger then Joruus, who was able to control 37,000 minds at the same time and kill a powerful Dark Jedi that guarded Wayland.
I'll get to the rest later, right now I have to go.
Basically, Sidious could take either on his own for sure, but together I'd give them a fair chance but not a certain victory.