[/spoiler] [Spoiler Accursed of the Dark Dimension] When this card is Normal Summoned, you can activate one of the following effects: Reveal 1 Ritual Monster in your hand
This frees up the other Inkmoth to play your spells (hopefully a removal spell or an Arcbound Ravager following another land drop)
The combo deck piloted by Matt Nass in Grand Prix Vegas 2018 involves quite a bit of tinkering: Get Krark-Clan Ironworks into play
Being able to shift identities at instant speed adds a lot of options and complexity as the battle continues
Id slip it into a deck with some ways to recoup your life, and potentially ways to reset it by bouncing it, such as Master Transmuter, or blinking it, such as Teleportation Circle
The non-foil card is a Legend Membership promo (basically the original Player Rewards), and although it is extremely rare, its not as expensive as the judge foil version