Umbral Terror

The Umbral Terror monsters (known as Umbral Killer (ウンブルキラー) in the OCG) is an sub-archetype of the "Umbral Horror" monsters, which are used used by Vector in the fanfiction, Astral Dueling Conference. it is the first to feature Dark Synchro, along with Fusion, Xyz, and Synchro monsters.

Play Style
The Umbral Terror monsters utilize Burn, and Lockdown tactics in their strategy.

Etymology
Each monster is based off of a fabled character, or in Chupacabra's case, a fictional being.