18 Worms all look alike (1/2)
As much as Chester wanted to destroy the plot and see what happens he couldn't. Like he mentioned many times before the butterfly effect constantly hung over Chester like a guillotine. If he were to mess with something too much for all he knew humans could end up nuking the wizarding world. Yeah, not very fun is it?
Killing Wormtail however was worth it because Chester gained a very useful card.
Humagus
(Common)
Because of your limited control over this ability, you can only transform when you are not in danger and you could transform randomly in the same conditions.
What that meant was he could only transform when he was safe but as he upgrades it chances are that it will improve so Chester can use it by command. Now Chester thought about how do Animagus stay clothed when they transform?. Does it like combine with their skin? or is it underneath the fur or something? Maybe they even keep a bag on them. Also what happens to their wands. I doubt that would combine with their skin
I mean Chester didn't really want to be in a life and death fight, transform into a human and be without clothes. That would be a very bad idea. For one it's probably very embarrassing. Maybe they use transfiguration and turn rock into clothes or something like that. Either way, it is very magical.
Chester let out a cat yawn and decided to beat a look-alike rat into submission to be Ron's pet. It wasn't a permanent solution but it would be okay for a while. It's only use was to make Ron think that his rat was okay, take it to Eygpt where Sirus would find out about it.
Chester searched the stands and found a rat that looked almost exactly like Rons although it wasn't that hard since there aren't that many types of rats that don't look like Wormtail.
Chester decided to be very gentle with this rat since if he were to use even a little bit more power then chances are that the rat would be splattered of the back of somebody's leg. Chester pushed it down and gave it a tiny flick which caused it to squeak.
Eventually, the rat gave up and was tamed.