Skill costs 15kg. Requires a foundry, which can be located in certain towns (i.e. Kyzerok, Aradoth).
Warhulk module: 1K gold, 10 veilron ingots, 10 leenspar ingots, 5 theyril ingots
Spider Scarab: 5 modules, 1 orb of might
Stormhammer: 10 modules, 1 orb of might
Battle Ark: 30 modules, 1 orb of dominion
Vileforge: 50 modules, 1 orb of dominion