[There's a very good reason he's been training his Steelix while standing on top of it; it keeps his physical conditioning up - outside of personal preference toward doing so, it's certainly going to be useful in the event of a trainer actually doing the reasonably smart thing and leveling attacks at him rather than the creatures he's controlling.
It'll serve him just as well here. The sudden shifting of the ground is jarring, but it's nothing he can't handle; he maintains his balance, using the force to spring off and put some distance between Armstrong and himself, the motion agile. He lands hard, but his arrays are still activated; he doesn't think, he simply does, pressing his hands to the ground as soon as he connects with it and forcing another massive chain of explosions in the other alchemist's direction.]
no subject
It'll serve him just as well here. The sudden shifting of the ground is jarring, but it's nothing he can't handle; he maintains his balance, using the force to spring off and put some distance between Armstrong and himself, the motion agile. He lands hard, but his arrays are still activated; he doesn't think, he simply does, pressing his hands to the ground as soon as he connects with it and forcing another massive chain of explosions in the other alchemist's direction.]