[Meta thread] Iron's PokeRole Adventure: The Skull Ruins

[Spiritmon]

Spoiler

Or ask them to breed/teach the Beldum Agility, Icy Wind, and Hammer Arm, if I were to make an alternative suggestion (and if it's actually possible). If the researchers can breed Tutor Moves onto the floating metal arms, you might as well take advantage of that and get a coverage move for Ground Types, and getting Agility and Hammer Arm via breeding means you won't have to pay 38 and 45 XP (respectively) to gain access to counter Dark and fellow Steel types AND gain a potent DEX buff (Which is better than straight Defense in most cases, since it plays a quadruple role in Accuracy, Initiative, Multiple Actions, and Critical Hits). You'd be without powerful dual STABs that could Flinch as a trade-off , but I'd say it's a worthwhile trade overall. That, and Stair City/Dagney probably has Iron Head TMs and/or a Steel Type Tutor that could beef up a Metagross pretty easily on one front, and Zen Headbutt is a learnable move for a fairly modest XP cost. Plus, Metagross starts off with Metal Claw and Confusion, so your living supercomputer won't be without servicable attack options, mate.

EDIT: Forget that DEX also plays a role in Evasion Rolls too, and generally makes travel faster on mount Pokemon that can't learn FLY. That too!