Wortox substituting souls for shadow fuel to teleport

[marshyds]

This might be a ridiculous idea, but the shadow affinity could let Wortox substitute souls for shadow fuel to teleport. maybe for 2x cost though.

Wortox already tends to be insane due to soul eating (though it can be avoided with chugging banana shakes.), especially with the naughty inclination, which prevents you from getting sanity from dropping souls.

So being able to use shadow fuel for teleporting would be a cool bonus to fending off shadow creatures.

As for the 20 soul restriction, i don't have any idea on how it could apply to shadow fuel, because suddenly dropping your fuel due to reaching over 40 could be annoying, any ideas?