So either his coding changes after 5 wins, or he's been changed so that no one can beat him using the same strategy? In any case... TROLL!
Have you tried to beat him with any other pets?
I bet it changes after 5. That's freaking awesome!
well I bought one early today for 50K and it's useless.... what happened to that thing by the way? I don't see it in the shops anymore :o
I did! None of my other pets can beat him using the strategy I did earlier. :D The trolling continues!

Aw crud, it changed? Welp, back to using every single item :x
- Are your other pets similar stats?
Well if the method changed, then it doesn't even matter what shield it was anymore.
Omg this is going to be the worst Trolling Subeta has done though if it is completely random every single time and there's no 1 method
The Joker Shield was bought out of the Search. It looks like it was selling pretty low earlier today, but it's a tier 3 shield, so I don't think that's it.
Yes. All of my pets are tier 1 except for my (in-training) battle pet, who is tier 3. I beat him initially with one of my tier 1 pets, and now none of them, tiers 1 or 3, can beat him. xD

Could it be timed? Maybe the shield trick only works the last 15 minutes of every hour -- or something like that. Then we would not only need to figure out the other possible solutions, but also discern when they each work.
Well what if the method for the first five has to do with pet id last digit or something? It would help to know what the item that used to work was
I wonder if it changes on the hour? Cranberry posted at 2:05.
- I suppose that confirms that it has changed. Unless it is tied into pet colour/species somehow. (I know wanted to do something where pet colour affected battle results in some way at some point)
- That might be a possibility.
Anyway, I've wasted enough of my day dwelling on this. I don't give other internet trolls the time of day, why should this one be different? Off to go do something with my life.
I give up. I'll catch up later. I've gone through too many shields.
if hikei grooming brush shield was really the item required then this challenge is just silly. I'm not sure how a connection could be made between the two. If its just randomly trying every item until one works... bleh... I was thinking it'd be something cool or thoughtful, but maybe I'm just missing the connection, or it was just an accident that that worked.