Section 10 of 12◉
Mod Capacity & Polarities
Capacity budget, drain, and aura slots.
Every mod costs capacity (drain) to equip. Matching polarities reduces costs.
Capacity Budget
| No Catalyst/Reactor | 30 Capacity |
| With Catalyst (Potato) | 60 Capacity |
| Kuva/Tenet weapon | 30 + 2 per Forma (×2 with Catalyst) |
Polarity Matching
The engine computes drain per slot as follows:
| Matching polarity | ceil(drain / 2) | Half cost! |
| No polarity | Full drain | |
| Mismatched polarity | floor(drain × 1.25) | 25% penalty |
| Universal (Omni Forma) | ceil(drain / 2) | Matches everything |
Aura & Stance Slots
Aura and Stance mods add capacity instead of consuming it. A matching polarity on these slots doubles the bonus:
| Matching polarity | bonus × 2 |
| No polarity | bonus × 1 |
| Mismatched polarity | floor(bonus × 0.8) |
Interactive Mod Simulator
Click mods below to see how they change stats and capacity in real time. Notice how the capacity bar fills up and how individual stats change — this is exactly how the live game works.
Mod Simulator
Excalibur · Rank 30 · Orokin Reactor · Click a mod to equip
Available Mods — Click to equip / unequip
Mod Capacity0 / 60
E
Excalibur
Rank 30 · Max Stats
Live Stats
Health
300
Shield
300
Armor
225
Energy
225
Ability Strength
100%
Ability Duration
100%
Ability Range
100%
Ability Efficiency
100%
Pro tip: Install an Orokin Reactor to double mod capacity 30 → 60. Each Forma adds a polarity slot — matching a mod's polarity halves its capacity cost.