Hey everyone. Just some info about Rarefying, at 10:30, I notice a bit of a difference when using HP soul to rarefy an HP scapular, and using a Guardian soul to rarefy the same HP scapular. This DOES matter. You will need less souls to rarefy if you are feeding the same soul type.
For example:
To upgrade the rarefy level of an equipped HP soul from level 1 to level 2, feeding an HP soul will ad 20% success per piece, feeding a non-HP soul will only add 14% to the success rate. This means you will need more non-HP souls (6), to upgrade to Rarefy level 2, instead of just 4 same-type souls (in this example, HP)
Cheers.