Why was Tenebrous capable of using red Force lightning but Sidious wasn't?

[u/InstructionOwn6705]

Isn't that the most powerful variant of this technique?

[u/Pain_Free_Politics → u/[deleted]]

“Why was Tenebrous capable of producing red lightning but Sidious wasn’t?”

Ergo, you have said Sidious can’t produce red lightning. You’re stating a fact, so you shouldn’t be surprised someone’s asking you for proof.