This system is designed for precision and creativity. A prosthetic arm may hold only **one mod at a time**
|Mod Type|Mod Name|Effect|Price (gp)|
|---|---|---|---|
|Palm Module|Stormbrand Sigil|Emit a 30 ft line of crackling blue lightning (Dex save DC 13, 3d6 dmg), 1/rest|1,200|
||Thornwhip Bracer|Launch magical thorny vine (30 ft, pulls creature 10 ft, Str save DC 14)|900|
||Emberbloom Palm|Release a 15 ft cone of flame (2d6 fire, Dex save), ignites objects|1,000|
||Luminous Burst Glyph|Emit radiant flash (10 ft, Cha save DC 14 or blinded)|1,200|
||Gust Sigil|Push all creatures in 5 ft 10 ft away (Str save DC 13), 1/short rest|900|
||Icevein Core|20 ft cone of cold (2d8, Con save DC 13 for half), 1/short rest|1,000|
||Phoenix Rune|Flame eruption: 10 ft radius, 4d6 fire, Dex save DC 15 half|1,600|
||Thunderbranch Totem|Thunder pulse: 15 ft radius, Con save DC 13 or deafened (1 round)|1,100|
|Forearm Housing|Hidden Relic Chamber|Holds a small holy symbol, potion, or spell focus|500|
||Vialfang Injector|Inject potion stored in hidden rune-etched fang|700|
||Druid’s Root Compartment|Holds herbs or components; access as bonus action|600|
||Trickster's Casket|Drop noise/light illusion trap (minor illusion, DC 12 Insight to disbelieve)|700|
||Smokeleaf Canister|Create 10 ft fog cloud, 1 min duration, 1/long rest|800|
||Dart Nock Engraving|Fire up to 3 enchanted bone darts (30 ft, 1d4 + 1 force)|800|
|Joint Enhancement|Spiderlimb Tendons|Climb difficult surfaces with ease; advantage on Athletics (climb)|850|
||Ogreblood Reinforcement|Unarmed strikes 1d8; on crit push 10 ft|1,200|
||Ravenreach Socket|Extend arm 10 ft to interact/grab small objects|800|
||Satyrspring Coil|Double jump distance, halve fall damage|900|
||Lodestone Elbow|Pull metal objects 10 ft (Strength DC 13 resist)|1,000|
||Whirling Knuckle|Make two unarmed attacks (1d4) as bonus action|1,200|
|Surface Rune|Rune of Binding|Once/long rest, cast _hold person_ (DC 13) through the arm|1,800|
||Sigil of Barkhide|+1 AC while unarmored|800|
||Emberward Rune|Resistance to fire damage|1,000|
||Serpent Mark|When hit in melee, attacker takes 1d4 poison (once/round)|1,200|
||Frostbrand Engraving|Reduce enemy speed by 10 ft when you strike them (1 round)|1,200|
||Rune of Chains|Spectral chain lashes out (30 ft, grapple or trip, DC 14), 1/rest|1,600|
|Integrated Weapon|Moonfang Blade|Hidden silver blade (1d6 slashing, finesse, silvered)|600|
||Stormcoil Knuckle|Lightning punch; DC 12 Con save or stunned|1,500|
||Glyphcast Bracer|Cast one cantrip you know via INT from the arm|1,000|
||Spearhook Launcher|Fires 30 ft chain spear; DC 14 Str save or pull|1,400|
||Emberblast Totem|20 ft blast, 3d6 fire, Dex save DC 14 half|1,600|
||Bonecutter Saw|1d10 slashing, bleed 1d6 per turn (Con save ends)|1,400|
||Tempest Rod|30 ft arc blast (4d8 lightning), Dex save DC 15, 1/long rest|2,500|