SP Recoveryhttps://irowiki.org/wiki/SP_Recovery

SP regen happens every 4 seconds while sitting and every 8 seconds while standing or walking. The skill Magnificat halves these times. Being in a fort owned by the player's guild doubles SP regen.

See also: Increase SP Recovery, Spiritual Cadence

var SPR = 1;
SPR += Math.floor( MAX_SP / 100 );
SPR += Math.floor( INT / 6 );
SPR = Math.floor( SPR * (1 + SPR_MOD * 0.01) );
if (INT >= 120) {
 SPR += 4;
 SPR += Math.floor(INT / 2 - 60);
}

• SPR_MOD : Sum of modifiers

Base value of 1. Then +1 for every 100 SP and +1 for every 6 INT. Increase by modifiers. Finally, if INT is at least 120, +4 and another +1 for every 2 INT above 120.

Note: Prior to renewal, modifiers were applied as the final step in the calculations. Thus, high-INT characters currently recover less SP over time than their pre-renewal counterparts.

• Sohee Card: +3%
• Eggyra Card: +15%
• Sleipnir: +15%
• Incubus Card: -20% without combo/+10% with
• Ayam [1]: +3% if equipped by Taekwon class character
• Arc Angeling Card: +100% if base LUK >= 77