If a character were to hold up a metal lid or broke off a wooden door or even froze some water into a roughly shield-like shape, what would be the rules for using such an item as a shield?
- Would it impose any disadvantages?
- Would being proficient in shields mean anything? Would the fact that the player created the shield give them some form of proficiency?
- Would they get an increase to their AC? If so, how much? Would
it be the standard +2 from a regular shield? If so, what's
stopping someone from just using that as a shield from now on
instead of buying on from a shop?
- Would it induce a form of cover, either half, three-quarter or full cover? If so what type on what basis?
If you know of any other information, rules or caveats about improvised shields, it would be swell if you could mention that too or point me in the right direction. Thank you!