kung fu grippe

Black Tom’s original mutation allowed him to look like a normal human being with an ability to channel concussive blasts from wood. However, in Chuck Austen’s Dominant Species storyline, Black Tom suffered a secondary mutation that left him as a half-plant creature with a lost sense of humanity.
Secondary mutation - Wikipedia, the free encyclopedia.

Let’s be honest. Sometimes, Marvel writers just stopped when they needed to catch the next commuter train.