Diaboli

With a chance of 1 in 1,004, Diaboli is an easy Epic to land: about 100 rolls at 10x luck. It is an Epic aura from before the Main Update, made by Aurenesp, and it is the parent of Diaboli : Void. The wiki also lists a lengthy crafting entry that includes a Desire Glove, 80 Galactic Devices and 152 Gravitational Devices, plus more items the page cuts off.

The look is dark red and aggressive. Small horizontal red particles climb from beneath the player, a red muzzle-flare effect sits over the eye, and a red sword symbol on the torso emits a pulsing light. A thick red smoke rises continuously from under the player, over what looks like a portal or a fire pit. The cutscene goes black with an ominous noise, the edges glow light red and a black slash cuts through the center before the reveal. The wiki keeps separate notes for the Eon 1 and Era 9 or earlier versions. Comet and Cosmos borrow the eye-star motif seen here.