>Meteor Mash is a literal iron fisted attack >nothing gets

Tough claws boosts it by 33% as well as all of its contact moves

Just about any HA would be better than Light Metal.

>Hurr less damage from low kick and grass knot

While at the same time doubling damage from heat crash and heavy slam. Thanks.

>>30687962
IIRC Metagross is too heavy for Light Metal to have ANY effect.

>>30687928
Tough Claws is Megagross' Ability, but not Metagross' HA, which is what the OP was talking about

>>30687981
Pokemon with light metal:

Metagross (N/A)
Scizor (Who the fuck doesn't run technician on him)

Also you'd only minimize damage from 2 moves, 1 of which is not-effective to the user's typing.