When attacking, use Basilosaurus whales, they cannot be grabbed, be aware that once low health, the squid will flee and emit ink, and debuff you by making all nearby creatures aggro you. I almost lost a 265 basilosaurus to 4 dunkleos and 10 megalos that boxes me into a star formation.
Alpha squids are the strongest alpha in the game they have the most hp and damage increase per level and the slight fact that they grab any tame that isn't a basilo or another squid makes them even worse.
Idk if anyone else has has this happened to them, but on ragnorok I found about found about 10 of these scary bastards in the top left region, 2 od which were Alphabet, unless you got your self and incredibly overpowered tuso, mosasaurus, or basil, or just an armada of one of them don't go there, the alphas apparently love to fight in packs with about 2 other Tuso's each with a couple of other random ones not too far away,so be DAMN careful!!!!