Citadel: Forged With Fire - How to Siphon Resources

How To...

• Step #1: Pick up various items along the ground to reach level 5.
• Step #2: Once you are level 5, Unlock the first Utility spell called Extract. 
• Step #3: After you have learned Extract, you then go into your spellbook and apply the spell to a weapon of your choice.

Now you can extract materials :)