[ Oh, that's a little tickly- Rex's laughter is ten times as spooky as his face, so even the quick chuckle sounds like something from an evil overlord. A very 'I've got you now my pretty' laugh and he covers his mouth with his fingers when it slips out. Thankfully it doesn't last long. ]

Barrier spell. I couldn't get the shield generator small enough to fit in my coat, so I studied the principle and replicated the result with magic.

[ He watches Moltonne get up. It's a slow process, needing to get onto all fours first and taking a bit to get the balance back on its feet. Who can blame the thing, it's so heavy. ]

...Maybe I should add righting mechanisms. Just a pair of sturdy rods to extend from the shoulders, maybe.