I don't do comics, just novels.
In my fantasy novel Bright Morn series its sword fights and I'm a (very bad) swordswoman so I tend to choreograph the scene before I write it. Chapters 15 and 16 of Bright Morn of Issareth I have him up against ten men (he has a broken arm). There's also a sparring scene where, rather than describing the action I went for rhythm during a sparring match in Chapter 29:
"She knew Old God's reputation but had never seen him in action. She also knew Morn, still injured, was possibly an equal. Never did she think she would see two swordsmen of such caliber fight.
_Advance, spin, turn, thrust, swing, stab, advance, advance, advance. Scramble backward, stride forward, slide back, defense, defense, spring forward, jump, kick, spin, in the air, swing, smash down. One handed, two handed, roll on the ground, roll the other way, slam against a wall, get your footing, advance, advance.
Two hands, one hand, and Old God trapped Morn's blade. The younger man was on one knee, his sword buried in the ground to keep himself upright. Each breath he sucked in tore at his lungs. He retched, once, twice, and then unloaded his breakfast.'
Again, though, I physically choreographed it.
In my Dead Souls Doing the Samba I did not Choreograph in full as it was not a sword fight, but I did dredge up old old old karate classes to try and visualize it. It's between the protagonist and a Horseman of the Apocalypse at the end of chapter 22 thru 23 and 24.
By the time you get to a fight the ground work should have been laid for why they're fighting (although sometimes it's a sneak attack and then explained afterwards.) but if the reader thinks about it, even though the fight/attack is a surprise, they should be able to find the lead in to it.
Again, for me, rhythm is big. I guess I learned that reading all the Sharpe's Rifles books by Bernard Cornwall. no one writes battel scenes better than he does in my opinion.
If you're inclined to check out the chapters I've mentioned here: