Talk:Mods 2.0/@comment-147.100.155.242-20140224155849

"Aura mods for Warframes actually increase Mod Capacity rather than drain it. This can be from an additional 1 to 18 Mod Capacity."

IIRC, Steel Charge adds 14 Mod capacity, and putting it in a matching Polarity Aura slot bumps this value to 28, not 18.