There's an Adventure Mission with an A-Rank reward for Zant that is giving me a ton of trouble. It's a dungeon mission to fight through the map, find the key, beat the boss, and then fight The Imprisoned.

Most of it I can do ok at, but that Imprisoned fight is just killing me. It takes so long that I run out of time to get an A-Rank (it's like more than five minutes to beat him), and I have to run through so many cycles that I usually mistime a dodge and take a bit hit that I can't afford to (and I still have no clue how to dodge the lightning).

Can anyone give me any tips? What are Zant's best combos for wearing down the weakness gauge or hitting the toes?