To nobody's surprise, Lambert manages to grab Strange's arm. And, despite the fact that the magician is trying his damned hardest to squirm out of the other man's grasp, at the end of the day it's Lambert vs. Strange, so despite all of Strange's attempts, Lambert's keeping a tight grip on his arm.

Strange's wrists are covered in numerous small thorn scratches, like he was attacked by a rosebush or strung up with vines. The scratches on the wrist are covered in a mirrored covering, cool to the touch, as if mirrors grew over the wound instead of a scab. If Lambert pushes back Strange's sleeve, he'll see that the scratches don't end there: his arm also has multiple thorn wounds. It's been a few days, so most of the non mirror coated plant scratches have started to fade from Strange's arms, but some of the deeper scratches are still visible.

He continues to squirm, trying to wrench his arm out of Lambert's grasp. "The coating is a carnival change. It's grown in a few other places, though it's only recently shown up on my wrists. I'm fine, it's just--Lambert, let go!"

It explains the mirrored coating but sure doesn't explain the scratches. Strange is trying his hardest to dodge that question something fierce.