My first fight I had to use cubes on was Camazotz, later on I remembered I could've tried Medea Lily to get rid of the poison, but overall it feels like I could've had a better setup. I think I used 2 cubes, but not sure. The guts made nuking him hard and poison killed me sooner or later.
Tez, not the final one after ORT, but the I think the last one before that. Maybe I had a bad setup, I can't remember the fight clearly, I just went in with Avenger dps and two supports but I think he stunned them during the fight and then finished them off maybe I could've finished this without using cubes if I restarted more but yeah I think a stun did me in.
Final one I wasn't sure how to do better was the Daybit Foreigner rush one, I just slowly burned to death I think and they did a lot of damage even to Bazett and there were too many. Maybe I should've used an AoE Alter Ego or not sure if I didn't bring Caster Arturia so that might be it? I didn't really retry it, since I lost really late into the fight and didn't want to do it over.
ORT was overall pretty cool idea and I think executed well, aside from the fact that beating ORT, even though it had no heart etc., is still a weird thing to wrap my head around, but the stuttering before the concept of death was applied was insane, and I had a bit during the final fight.
That being said it's still cool to see how my invested Servants could solo bars, weirdness of actually fighting ORT aside, and died like the heroes they are. It was also cool to see how certain Servants I wanted to invest in and like, but didn't have much luck rolling copies of, did well. For example Munenori did 800k by himself, despite only being NP1. I always really liked his gimmick of reducing attack power, but getting to stack that was always hard and Saber Lancelot is better at firing NPs back to back. I'd love to make a team one day that has 2 supports that help out reducing the damage the team takes with him, instead of relying on invincibility and the like. Sure there's Hans and Waver, but neither of them helps him stack his debuff by looping, although Hans can at least regen NP for him so that's kinda nice, and neither has debuffs to lower the enemy damage.
During the final ORT fight I couldn't keep Bazett alive until the end so I was surprised to see Waver live for 8 turns, just barely, and solo a bit over 480k of ORT's Hp.