Soul Economy & Issen Mastery

Yellow souls replenish health and red souls buy upgrades, but blue souls are the bottleneck — they gate Oni Armament charge. Route through blue-heavy packs before bosses so you enter with a full gauge.

Issen procs off a perfectly-timed parry, not off low health. Fish for it on telegraphed overheads, and let the instant kill be the reward for the read, not for whittling.

A full soul gauge wastes every soul you absorb after. Spend into Oni Armament before engaging packs so every kill still pays you.