@CinCameron20
Elg In terms of physical prowess, he was both extremely fast, surprising even the lightning swift Brunch and putting a scratch on his face, and strong. It was later discovered that he was able to cut Brunch because he had hidden some clones in advance, demonstrating some skills in strategy.
http://toriko.wikia.com/wiki/File:Buranchi_dodging_Elg_attack.jpg
http://toriko.wikia.com/wiki/File:Elg%27s_clones_grab_Brunch.png
Elg stated that his "immortal body" was constantly learning and adapting, which it did at a very quick pace. After fighting a while with Brunch, his body's electrical resistance rose, though not as much as he believed.
Regenerationn.
Elg was granted immunity to aging and almost any form of damage that would be considered lethal to living creatures, thanks to Heraku's powerful regenerative abilities. This made him strong enough to endure Brunch's 100 million volt attacks or even being cut into a hundred pieces, as he just instantly regenerated any lost or damaged tissue.
Brunch suspected that the Heraku's immortality is due to the Regenerationn of pluripotent cells. Before pluripotent cells take damage and die, they rapidly make copies of themselves, thus instantly forming a whole new body. However, since Elg displayed this particular skill after having his body completely electrocuted, burnt and destroyed (which even shocked Brunch), the full mechanics of his immortality remained unexplained.
This ability had one potential drawback that Brunch exploited: Due to the fact that Elg's body continually regenerated from any damage, when confronted with an attack that endlessly injured him, his cells became trapped in an endless cycle of repair, with an upper limit to how many times his Gourmet Cells can continually repair themselves before giving up. Rather than face an eternity of being electrocuted, Elg's body ceased its nonstop Regenerationn, causing him and his clones to crumble to ashes.