Would it be illegal to scam a scammer?

I have noticed there's lot of scammers on Instagram and I know I can most likely outsmart these idiots cause they don't seem very bright, I can make myself sound so naive and then act like I'm going to give them money but the money app in my country requires a capacity or some bullshit like that to then have them send money to add up to that quantity so I can send them the money in all, it's just when they do send me the money, I just will just stop responding and keep what they send me, would something like this be illegal, which by the way since i have a computer i can change the digits of my account to make it look like i have a lot of money, i take a picture and send it to them and their greed will just somewhat blind them, I can outsmart a scammer and uno reverse card their shit and scam them, illegal? πŸ€”
Would it be illegal to scam a scammer?
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