Astereater - Gargantuan Aberration (CR 22)

Spelljammer rocked, and that's just a fact. It was an insane mishmash of madness, and featured some of the stupidest and weirdest cirtters in AD&D. I love it, and indeed, have a group running through Discord that is a Spelljamming campaign.

Although that group are a long long way from being tough enough (even in their ship) to battle one of these, I came across it whilst browsing the old Monstrous Compendiums, and thought I would convert it.

Astereaters are debased Beholder-Kin, and float through space with their huge central (and only) eye shut, pretending to be an asteroid. However, as soon as a possible meal comes close enough - CHOMP!!!!