|This needs a stretch. (Feel to remove when satisfied of completion.)|
The Daemon Ritus is the ancient magical relic that absorbs the victim's vital energy.
The Daemon Ritus is the key to conquer Earth by the hands of ancient demons, after completing the evil "Darkopolypse Ritual". Scrappy-Doo used the relic to control the demons, morph into a giant, powerful monster, and try to destroy Mystery Inc., with obvious failure.
It has three forms: Fully closed which looks like a pyramid: half open which looks like the net for a square based pyramid: and fully open which almost looks like a square but with little gaps.
Insert details here.