Make it easier for a low level character with ordinary Max HP to get
the healing result from a successful prayer. Mid level characters are the
same as before: will be healed if at 1/7 (or worse) of max. High level
characters, or anyone with Max HP really high for their level, will need
to wait until current HP is lower before being able to obtain that result.
This mainly affects spoilers; the actual impact for any player who doesn't
know the old formula is fairly small. The exception is for "protection
racketeers" who manage to build up a high HP without gaining any levels;
a level 1 character will only get healed when at HP 5 or less, regardless
of what percentage of max their current hit points are.
Under the old system you could get healed at 6 HP if you had 42, at
7 HP out of 49, and so forth. Now you'll need to be at least level 2 to
get healed at 6 HP out of 30 or more, at least level 3 for 7-9 out of 35-45.
"Normal" max is capped at 15 times level and anyone above normal is treated
as if their max was that lesser normal value. Levels 1 to 5 use a new
threshold of current HP being 1/5 (or worse) of max, levels 6-13 use 1/6,
14-21 retain old 1/7 threshold, 22-29 now use 1/8, and level 30 uses 1/9.
The somewhat odd level break points are based on where rank titles change.