Depending on what counts as a “run” I used savestates regularly in my first playthough on hard in order to explore stuff so that I would know things about maps without having to play through again to learn them. (so it would be hard to say using this metric)
In terms of “starting over from prologue”? Prior to starting the ironman attempts like 2 or 3.
After ironmans? I should easily be on 30-50 by now. I’ve only had like five-eight attempts make it to map 4 so far, only 3 to map 4, and two to map 5. Haven’t got past that yet.
Knowing what will be happening later on there are certain things other than raw game overs that I reset for, because knowing how the rest goes I know finishing without needing a restart from there would be sufficiently infeasible to not bother.
I lose probably 1/5 runs to the prologue, because the most consistent setup I’ve found still ends up with a 49 hit and a 39 hit on camian on a pillar from the revenant + skeleton boss that if they both hit kill him (the rest of that map is basically guaranteed to work, only a question of ohw many vulneraries I lose).
I lose probably half the remaining runs to random weirdness/unluckiness (eating random 10-20% tomahawk hits on skylar for lethal, unlucky misses on the boss at the end, getting “too” lucky on certain sequences that allow for multiple enemies to attack the same unit in a turn, minor play errors that end up getting punished, and a lot of trial and error stuff to see if I could find better optimizations).
Most of the rest of the runs were lost to optizimizing map 3. It wasn’t clear exactly how greedy I could get without losing consistency, so I lost a lot of runs trying to see whether I could get the elixir before completing the map or get some extra xp off the ship reinforcements/etc. Ultimately almost none of it panned out. The current strat picks up olberich, steals the hoplon guard and just ends the map on like turn 4. And even then I still lose the occasional run to unlucky combat-math greed where I have like an 80% hit chance to just finish off an extra unit before finishing (but if it whiffs it kills my unit if the counterattack hits).
I’m still working on optimizing map 4, so far I have not completed the map with both biserka and elizabeth alive AND been able to reach more than one village. Also learning some of the ai quirks lost me random runs due to he not-a-valkryie getting pulled closer due to physic.
I think ultimately I may just give up on the halberd entirely, and focus on just getting the longsword.
All my losses on map 4 have been to when he bosses make it to my team. Also nearly lost one to bad palcement and forgetting about hyledd/ivan and ending turn without acting with them, but I got lucky dodges so it continued.
losses on map 5 were bad placement, unlucky misses enabling xtra attack, and forgetting about the turn 255 spawns and their stats.
Overall MOST runs were less than 20 minutes total (losing before map 3).