This is attributed to him attacking with any of the multiple weapons he may have, which often includes the useless Excalipoor
First up, here's regular ol' Peter Parker/Amazing Spider-Man, arguably the most classic take the set has on the character
Grievous Wound's last ability triggers only once whenever enchanted player is dealt combat damage, no matter how many creatures deal combat damage to them at the same time
Then, they are in a rush to deal with the dork you bestowed which will usually get in enough damage that the 3/3 flying leftover you get is also a serious threat as well
If you grade, give corners and holo surfaces a careful inspection under bright, angled light
Most Commander players shy away from aggro, but with cards like Winota, Joiner of Forces and Caesar, Legion's Emperor it's more likely you'll run into go-wide threats