I've come to the conclusion that what everyone has ever told me about healing scrolls and what the ab files say about healing scrolls is wrong. The amount of health they heal is dependent either mainly or completely on what your current health, mana, and ego are, independant of the others. The more of any stat you have, the more the scroll heals for that stat and only that stat.

1h, 1m, 1e, 0p, elrkdb<>-|Safe|{27:26.73}
|Health: -4595||Mana: -4844||Ego: -4475|
You read a Scroll of Healing.
You feel an invigorating energy rush through you.
46h, 56m, 37e, 0p, elrkdb<>-|Safe|{27:26.86}
|Health: 45||Mana: 55||Ego: 36| <- All stats low, scroll barely heals anything

4596h, 518m, 3693e, 10p, elrxkdb<>-|Safe|{38:6.28}|Mana: 249|
You read a Scroll of Healing.
You feel an invigorating energy rush through you.
4596h, 567m, 3693e, 10p, elrxkdb<>-|Safe|{38:6.52}|Mana: 49| <-Very little mana, other stats full, still heals nearly no mana

4596h, 3555m, 3693e, 10p, elrxkdb<>-|Safe|{40:6.72}|Mana: 498|
You read a Scroll of Healing.
You feel an invigorating energy rush through you.
4596h, 3954m, 3693e, 10p, elrxkdb<>-|Safe|{40:12.44}|Mana: 399| <- Mana at 75%, heals a decent amount

Moar testing, plz?

A better test would be 1 health, 0 ego, 0 mana vs. 25% health, 25% ego, 0 mana vs. 50% health, 50% ego, 0 mana vs. 75% health, 75% ego, 0 mana.

From what I see here, it could be that it heals (CurrentHealth+CurrentEgo+CurrentMana)/(MaxHealth+MaxEgo+MaxMana)*(HealingScrollConstant) % of (MaxHealth+MaxEgo+MaxMana), divided proportionally between your stats based on their max values or their current value over the max value.


EDIT: Use health as the one that is always low. That way you can have Mana and Ego start at 0.

It heals about 10% on average to one of your stats based on a test run of 20 tries. Got bored after that.