'Though Jurassic-Types are often all-around fighters, many of them lean towards predominantly Physical lifestyles. Primal Elgyem, meanwhile, follows their Unovan counterparts, being dangerous Special Attackers that use rocks as their form of offense.
The story goes that Elgyem (and, by extension, their evolution) were called to Tamago during the otherworld's invasion, in order to fight alongside the ones that lay below. They've been nicknamed 'harbingers of destruction' due to their affinity to wrecking anything they deem hostile towards them- or, other Jurassic-Types in general, using their flare-powered space rocks.
Be incredibly cautious when interacting with Primal Beheeyem. They regard themselves as highly as kings, and will immediately turn hostile on anything that doesn't follow such a mindset towards them.'
– Professor Cyceda
by Joseph_Plays