Homebrew:Invocation: Otherworldly Strength

(OOC: This is an implementation of the Mistbringer invocation from Tasha's Crucible of Everything Else volume 2)

Fog, mist, rain, snow, dust, smoke, and similar substances do not obscure your vision, and you can cast fog cloud once using a warlock spell slot. You can't do so again until you finish a long rest.