Muckling art

This page lists cards with card art depicting mucklings.

Lore
Not much is known about Mucklings, other than that they are servants of Hagatha the Witch. They were first introduced in The Witchwood and are unique to Hearthstone.

Since it's speculated Shudderwock is a mutated green dragon, it's possible the smaller mucklings are his former brood. They also bear some resemblance to murlocs.