Imho skinks without shields become a dsictraction carnifex. Theyre squishy and a potential threat so opponente Will be quite eager to annihilate Them for some easy and impactfull casualities. You probably wont be able to rely on blocks like that to survive long enough to actually do decent damage in most games. But they draw away fire and that in itself may be valuable. Plus if they do get ignored they pack enough of a punch.