Full EP:
https://www.youtube.com/watch?v=zjaUAEZTm_0

Awesome! I'll go ahead and submit it.

There's a short review here that says it's a self-released CD-R.
https://psicoterror-reviews.webs.com/demos

Also their old Myspace page, but no archived versions exist, sadly:
https://myspace.com/abismonegrosul

[Edit: and a shop that had the CD-R listed in 2010:
https://irmandademetalica.forumeiros.co ... roductions ]

First of all, I would like to thank you for bringing this band here. For over 10 years I have been looking for more information from this band and I have never found anything.

Well, I "don't have samples coming straight from that tape", but here I propose some information that can help you submit this band as a Thrash Metal band.

The first is this quote:

"As compensation, a new generation of more structured groups emerged, such as thrash Chacina and Hipynose, Jack Daniel's Incorporation, which makes a well-done thrash, and following the trend of current Brazilian metal, the female band of death metal Jank Crude is already winning over local bangers."

Source: https://i.ibb.co/7bbzgnC/Chacina.png (in portuguese)
Rock Brigade Magazine #63, p.54 (September/October 1991)

However, I know that this information alone should not be enough, and for this reason here I bring some more information, but this information can seem confusing...

It seems that both Chacina and Mystical Vision, which are bands from the same region (both from Manaus, in the state of Amazonas) have released demos with the same name, same songs and same members (if in doubt, you can check it on the band's page here). Junior mentioned in the link discogs you posted is Silas Alves - his real name could be Silas Alves Junior, or even some more than has been omitted.

I went to the Mystical Vision page on FB looking (I sent them a private message last year for more information about the band and the Amazonas metal scene, but unfortunately I never got any response) and I found this passage in the band's bio interesting (I only translated it into English the 1987-1992 period that appears in the band's biography):

"Biography:
Formed in the middle of the dark and vast Amazon rainforest at the end of the decade of thrash metal worldwide, in March 1987 Mystical Vision begins its history bringing in its initial formation Marcelo Sanches (Bass / vocals), Kiko (Drums), Silas Alves (Guitar) and Fábio Andrey (ex. Insanity / The Mist - Guitar and Vocal).
With the departure of Fábio Andrey in 1989, Alexandre Rodrigues took over the guitar together with Silas Alves and the band precariously released its first demo tape in 1990 entitled "The Blind Man's Buff".
In 1991 with the departure of Alexandre Rodrigues, the band gained reinforcements with Fred Magno (Guitar) and Eduardo Correa taking over the vocals and stabilizing their formation, that's when in 1992 the band released their first official demo entitled "Take It Easy"."

Source: https://www.facebook.com/pg/mysticalvis ... e_internal

It's very likely that Chacina is the pre-Mystical Vision band, and they changed the band's name (even why, several Brazilian bands got their name) after releasing the demo "The Blind Man's Buff". What makes me think this is this passage that I highlighted in the Mystical Vision biography:

"In 1991 with the departure of Alexandre Rodrigues, the band gained reinforcements with Fred Magno (Guitar) and Eduardo Correa taking over the vocals and stabilizing their formation, that's when in 1992 the band released their first official demo entitled "Take It Easy". "

They probably changed the name of the band in 1991 with the entry of new members, but they see this whole pre-1991 phase as the same band for not having changed the sound proposal or something like that. I can't tell if they re-released this demo under the Mystical Vision (I only saw the demo "Take It Easy" on tradelists related to this name).

And finally... The discogs link you posted, the demo is described as from 1990, but in the last image, the one with the tape, the name Chacina and the year 1991 appear. Perhaps the demo was recorded in 1990 , but released in early 1991 (before some members left the band). And this information is in line with the only song I found "from this demo" (and that proves that this is a Thrash Metal band):

https://www.reverbnation.com/mysticalvi ... rtistMusic

I'm sorry for writing so much. I tried to summarize this in the best possible way, given the information you posted.

And just out of curiosity... This isn't the first tape released by a band from Manaus (like the discogs' link you posted says). Most likely, the first was the Anestesia's "Total Massacre" demo from 1988.

According to the drummer, the self-titled EP was released digitally but with a Mediafire link. This clarification serves and is enough as a proof to add the band?

Hrm, well it says "Download our tracks here" on MySpace and him confirming that is good enough for me.
So yeah, submit

Thanks!

Postscript: The band also broke up years ago.

Hey Azmodes, I got half of this demo and I uploaded it to Mediafire after so many hours of complications/difficulties. I hope this helps you a lot, link here:
http://www.mediafire.com/file/0dbx4geri ... 9.rar/file

Nice job, this sounds perfectly fine. Good to submit.

Where did you get this, if you don't mind me asking?

EDIT: I've approved a submission by the user who originally reported the demo on Breaker's page, but will award you the points regardless.

Contacted

VK has what seems to be the whole tape: https://vk.com/wall-55460303?q=eiskalte ... 0303_36483 Don't have an account though, so I'll leave the actual determining-whether-it's-metal-or-not part to someone who does.

EDIT: Never mind, the band seems to be in the queue already.

Full demo:
http://www.mediafire.com/file/m4iur4ryk ... e.rar/file

The artwork used in the video does also look rather modern to me. So, I'd trust them if they say the single was never released.
On the other hand, they mention the release of a demo tape in 1988, so I'd focus on finding that.
This channel has songs from it, maybe all of the songs:
https://www.youtube.com/user/metlaband/videos
It's the youtube page of this band: https://www.metal-archives.com/bands/Metla/103549

Lacks proof of VR though.

Full demo, in what comes proofs of valid release:
http://www.mediafire.com/file/wh2q247kz ... 9.rar/file