(This card and another one in this isn't actually in any of the Yu-Gi-Oh anime series,mangas or the actual card game,this is just one that I made up and had the idea for on my mind for awhile for some of my characters to use or have used)

Beserker Demonic Trigger is a rare card that many knew the origins of this card or how exactly it had originated before being made into a card Maximillion Pegasus's company, Industrial Illusions, However what has been known about it was that Pegasus had hidden this card away due to the type of power it had given off since it had made

The card when played during a game of duel monsters works as both as an equip and also fusion spell that will bring out a more demonic and terrifying side to the monsters used especially when they merged together through this card alone but in order to activate the card when playing it your going to need to give up a least 1500 of your life points in order to use   it and for it to go in effect and your monster(s) will gain 1000 life points for each monster on your opponents side of the field

There are only five of these cards to exist and are also very hard to come across with them also being buried underground so no one can obtain them simliar to Pegasus's attempt to hide the three Egyptian God Cards under the sands of Ancient Egypt until those cards were used and found by Marik Ishtar and his rare hunters before Yugi Muto and Seto Kaiba obtained two of them both before and during the Battle City Tournament

Unfortunately,Just like the Egyptian God Cards,Some of obtained a few of the copies of this card from across the world and we're even used during a duel monsters tournament taking place within the "Memorial Circuit"which is the same place that the Fortune Cup Tournament had took place

One of the people/duelist in this had happened to be the son of the king of games,Yugi Muto known as Zeke Muto

Zeke would have obtained this card during the competition after facing off against a Duelist that was a member of a cult known as the "The Terrios' Scions when they were attacking one of his friends by the name of Kisara Ventura until helping her defeat them

During a match in the semi-final,He would equipped the Berserker Demonic Trigger onto one of his own monsters "Metal HERO Trionyx"

He used this on Trioynx in a Yami No Game (In other words Shadow Game or Game Of Darkness) with another member of The Terrios' Scions as they were messing with your his mind and memories even to the point of threatening him and his friends and family until a darker,destructive and lethal side of himself was unleased within the duel

Trionyx did go berserk within the duel and same for Zeke?,His friends including Kisara noticed this while trying to get him snap out of this state of mind after he had defeated the Scion cult member but it took awhile for him to become again and usually whenever this does happen,Zeke will lose his memory of how the battle concluded including the use of the card before later finding out about the power the card possess and what he did after he played which make him refuse to use again and only does if there is no other option left...