How did you hallucinated all these arbitrary scenarios in your head? Lol
It's called reading conprehension lmao.
Whatever xebec did, was nothing above mid diff, given his performance afterwards.
We have the evidence the Admiral was killed by Xebec so it means they fought despite the lack of evidence of how the fight went, but Xebec attempted against his life.
With Shanks and Loki, it's stated that Shanks captured Loki, and we know this doesn't exacly means they fought 1v1 because we already saw characters being captured in One Piece.
Lmao and this isn't hypocrisy?
'Despite the lack evidence' , did Xebec poison him or something lmao.
Gaban literally confirmed no one could capture loki except shanks, Luffy even said he would beat luffy if he did anything.
Unless or until shanks used talk no jutsu against Loki nothing is confirmed lol.