This self titled album by Nesseria is an essential with the core-ified relentless mathgrind stuff.
https://nesseria.bandcamp.com/album/nesseria
But more attention should be paid to this Kurt Ballou produced slab of Gaza-esque sludgeilated dark mathcore album by Cult Leader, who surely will continue to rise in the ranks of all these sludge type core bands everywhere.
https://cultleadermusic.bandcamp.com...lightless-walk it at least made a badass statement
If anyone ever finds mathcore to be too technically demanding and out of control, they should listen to Charmer by Breather Resist. Abrasive and off kilter/progressive post hardcore jammed with great ideas and great executions of those ideas.