The serpent mini is a beautiful RTA with phenomenal flavor and probably one of the easiest build decks around but I'm not sure I would classify this as a MTL tank. I think as far as MTL the top contenders in the RTA category are the kayfun mini v3 or the hurricane. Now for pre built coils the melo 3 with the airflow closed is an awesome MTL tank Sorry about drifting off topic
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