Omastar pokedex

Pokedex data

Red Blue	A prehistoric POKéMON that died out when its heavy shell made it impossible to catch prey.
Yellow	Sharp beaks ring its mouth. Its shell was too big for it to move freely, so it became extinct.
Gold	Apparently, it cracked SHELLDER's shell with its sharp fangs and sucked out the insides.
Silver	Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.
Crystal	Its heavy shell allowed it to reach only nearby food. This could be the reason it is extinct.
Ruby Sapphire	OMASTAR uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large and heavy, causing its movements to become too slow and ponderous.
Emerald	An OMASTAR uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large, making its movements slow and ponderous.
FireRed	Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.
LeafGreen	Despite having strong fangs and tentacles, it went extinct when its heavy shell made it unable to catch prey.
Diamond Pearl Platinum	It is thought that this Pokémon became extinct because its spiral shell grew too large.

This chart shows how Omastar fares against moves of each type. Red indicates a weakness while green or black indicates a defensive strength.

nor	fir	wat	ele	gra	ice	fig	poi	gro	fly	psy	bug	roc	gho	dra	dar	ste
½	¼		2	4	½	2	½	2	½