Sturdy Frame
| Rank | Effect | Flavor |
| 1 | -2 Encumbrance from equipped armour. | Your movements are slightly less encumbered by armour. (ER -2) |
| 2 | -4 Encumbrance from equipped armour. | Your movements are less encumbered by armour. (ER -4) |
| 3 | -6 Encumbrance from equipped armour. | Your movements are significantly less encumbered by armour. (ER -6) |
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This mutation allows the player to wear heavier Armour without the associated penalties to EV or Spell Success. | ||