While trying to get all of my completion marks I have noticed a bit of an issue when it comes to fighting Hush in the Blue Womb. No matter what my build strength, the amount of damage I am able to deal to Hush seems to peter out as I reach the later phases. This is bad for me, as I am not that great at Bullet Hells and having the final phases stretched out ends up with me taking a lot of damage.
Through my research I know that Hush (and Ultra-Greed) are different from normal bosses in BOI in that they have some sort of Armour/Damage Resistance/HP scaling. I would like to know how that Damage Resistance works specifically to learn strategies to overcome it.
I know that some item builds like Gnawed Leaf and Pinking Shears/Daddy Long Legs etc. for invincibility and Serpent's Kiss or SharpPlug/Habit and Blankcard/Placebo to heal-up can make taking damage not an issue, but I would rather not be forced to reset until I get those items and the healing builds don't work on The Lost.