Originally posted by DarthAnt66
Why not?Valkorion was immensely weakened and Vaylin was well-experienced at having the technique used against her. Neither is the case vs Plagueis. The buffer it takes for him to break out - if he even can - will be his death.
There's no basis to the idea Darth Plagueis can no-show, say, Valkorion's Force lightning in a combat setting. He might be able to resist it temporarily (after being beaten in battle) but he will succumb.
Still proves it isn't a trump card, and knowledge of the technique seems less relevant than simply having the power to resist it. You're committing a no-limits fallacy by suggesting it'll automatically work on Plagueis.
I would argue there is plenty of basis he can heal against Valk's lightning, given the Sidious example, but even providing he can't out-heal it permanently, he doesn't need to because, he isn't drunk, ambushed and defenceless here. He can use barriers, tutaminis, his lightsaber for defence, relocate, retreat, heal and come back to the fight etc. He can be back in peak shape even if Valk breaks his defences. The midichlorians are creating new tissue to replace damaged tissue in real time.
Valk's only saving grace is that he's a spirit which makes him harder to kill, but given that even Kun could destroy spirits, I doubt Plagueis will be incapable. Nor do I think Valk has a way to put him down realistically before he expends himself.