After using killaura and fly in an arena flight I reported him with serverplz and he proceeded to spam it, like so.

[13:06:00] [Client thread/INFO]: [CHAT] <§cBankOfBattleDude§r> serverplz report argonFiles SHIT FACE
[13:06:00] [Client thread/INFO]: [CHAT] [Server] Thanks for your report!
[13:06:04] [Client thread/INFO]: [CHAT] <§cBankOfBattleDude§r> serverplz report argonFiles SHIT FACE
[13:06:04] [Client thread/INFO]: [CHAT] [Server] Thanks for your report!
[13:06:05] [Client thread/INFO]: [CHAT] <§cBankOfBattleDude§r> serverplz report argonFiles SHIT FACE
[13:06:05] [Client thread/INFO]: [CHAT] [Server] Thanks for your report!
[13:06:05] [Client thread/INFO]: [CHAT] <§cBankOfBattleDude§r> serverplz report argonFiles SHIT FACE
[13:06:05] [Client thread/INFO]: [CHAT] [Server] Thanks for your report!
[13:06:05] [Client thread/INFO]: [CHAT] §cBankOfBattleDude§r left the game
[13:06:16] [Client thread/INFO]: [CHAT] §cBankOfBattleDude§r joined the game

Next, he admitted to using Wurst.
[13:07:08] [Client thread/INFO]: [CHAT] <§3argonFiles§r> what client are you using mate
[13:07:13] [Client thread/INFO]: [CHAT] <BankOfBattleDude> wurst