Mana

Mana is one number with a soft cap and a hard cap. You begin with 20. Mana Crystals add 20 each and stop working after nine of them, at 200. Gear covers the rest: magic armor, dedicated accessories, and the Arcane modifier, which is worth another 20 on any accessory it rolls on. The absolute ceiling is 400.

You can reach 400 without ever eating a crystal if you stack enough Arcane rolls and magic armor, though that route is expensive in slots. On a real build the crystals come first and gear fills the gap.

Two separate delays sit between spending mana and getting it back. The first is a cooldown that must finish before regeneration begins at all, and its length depends on how empty you are. It is 0.7 times the sum of 45 and 240 multiplied by the fraction of your bar that is missing, measured in ticks.

In play that means about half a second of wait on a nearly full bar, and around three and a third seconds on an empty one. Draining yourself is punished specifically, and the punishment is roughly six times as long as the one for a light tap.

The cooldown starts the instant you stop spending, not when the spell resolves. Weapons you cast and then steer, like Magic Missile, begin it at the moment of the cast, so guiding a projectile is free recovery time.

Once the delay clears, the rate is your maximum mana divided by three, plus one, plus any bonuses, multiplied by 1.15 and by a fill factor. The fill factor is the fraction of your bar that is currently full, times 0.8, plus 0.2. That means a full bar gives a factor of 1 and an empty bar gives 0.2.

Standing still adds another whole maximum-over-three to the base, roughly doubling it. Put the two together and topping up from ninety percent while stationary is close to ten times the rate of clawing back from zero while running. That is why the practical advice is to fire in short bursts and pause, not to hold the button until the bar dies.

Hanging still on a hook counts as stationary, so you do not need to be on the floor for the bonus. The chime and blue sparkle at a full bar is your cue to fire again, and learning to attack on that sound is worth more than any single accessory.

Because the fill factor is a percentage, raising your maximum mana also raises your regeneration, since each cast now eats a smaller share of the total. That makes maximum mana genuinely useful rather than just a bigger number. But cost reduction usually beats it.

Halving a weapon's cost does everything doubling your maximum does, and it also lets you cast twice as many times before the delay ever applies. Spectre Mask and Dark Artist's Robes together cut a cheap weapon like Razorpine to half cost while adding magic damage on the same slots. As a rule, reduction wins on cheap fast weapons and extra maximum wins on expensive ones you cast rarely.

Mana Potions do not share the healing cooldown, so nothing stops you chaining them. What stops you is Mana Sickness, which cuts your magic damage for a short window after every drink. Drinking on cooldown all fight means fighting at reduced damage all fight.

A Mana Flower automates the drinking, which is convenient and makes that problem considerably worse. If you run one, carry Magic Power Potions to offset the loss. Restoration Potions refill both bars but are tied to Potion Sickness alongside your healing items, so they compete with your health potions rather than adding to your supply. And overfilling is simply wasted, so do not drink at eighty percent.

For a fight you have prepared for, mana stops being a constraint at all. Star Statues wired to a timer drop mana stars continuously, and a Crystal Ball in range gives a flat maximum mana buff on top. A Star in a Bottle covers regeneration for the area, a Mana Regeneration Band covers it on your person, and an Arcane Crystal is a permanent one-time upgrade to use the moment you find one.

Stack all of that at 400 maximum mana and regeneration runs at over 200 per second, more than any weapon in the game can spend.

Nebula armor drops mana boosters that run on a completely separate track. They restore a fixed amount on their own counter and ignore the regeneration delay entirely, which means they keep paying out while you are actively spending. No other source does that.

It is a large part of why the set holds together in the endgame against weapons with punishing costs like the Last Prism, where conventional regeneration never gets a window to start.