特殊能力追加（ＰＰ） aka Sprit Boost: How does this work?

[D-Inferno]

Does it add directly to the target item permanently, temportarly, or is their a success rate involve with it?

I'm trying to potentially get +140 PP using units and abilities. They would allow me to use Speed Rain 4 times, along with others like Sonic Arrow.

[Shadowth117]

It works as if you're adding any other ability and it is permanent. You use it along with your sacrificial weapons to transfer spirita boost onto your weapon. It has a 100% transfer rate too as long as your not adding it as an extra slot. Of course, your other affixes still have their chances to fail in the adding process.

[youcantcatchtheblue]

It's permanent??
Meaning that once you've added it and if you try to do another synthesis it will stay on the weapon 100%?

[JeyKama]

It's not permanent. It acts like a lv1 affix so it's success rate starts from 100%, but you can lose it like any lv1 affix.

[Shadowth117]

Ah, by permanent I meant that it stayed on like a normal affix. You can lose it though yeah.