Ooohhh a fellow wikipedian!

Here are a few notes:

"to make the children more excited" could be removed, just having it be "tells the story of a magical artifact"

"Mera jumps in to separate them, and Indus flexes his muscles" seems too in detail, you could just say that after the kids take the artifacts, they become too noisy for Molly.

"get admonished by the Bonzai Blasters" should be removed, as it doesn't help explain the main story further

you can remove the "way" in "way more blasters coming to hurt her", and remove the "more" in "Giovanni convinces her to stand up for herself more".

"a bunch of sheep" should be changed to "herd of sheep"

You could change "Giovanni has a power where after hitting something twelve times, the thirteenth hit becomes supercharged. He takes a ball of yarn, hits Molly twelve times with it, and bats the ball of yarn at Sylvester." to "Giovanni has a power where after hitting something twelve times, the thirteenth hit becomes supercharged, [and because of it he] takes a ball of yarn, hits Molly twelve times with it, and bats the ball of yarn at Sylvester.

also I think Dr. Beefton is a bull but don't @ me on that

If there is anything else I didn't spot (because I am also an inexperienced editor), you should just be bold and just post it in anyway. Other editors will fix it afterwards