[FAQ] How is SP gained? How is it determined at start of battle?

[KFCrispy]

1. SP in the character's status screen is their base SP going into any battle.
2. When entering battle, a pool of SP is distributed randomly amongst the team. This pool equals the number of characters in your party, and each character will only be given between 0 and 2 SP.

After each turn, each character gains 1 SP, with some exceptions (a martial artist will not gain SP in a transformed state). There are a few late game accessories and runes that can increase the character's starting SP as well as how much SP is gained per turn.