I've removed the picture from your post. We have rules against naming and shaming other players, regardless if they're guilty of something or not.
Picking unconventional / off-meta picks are completely allowed as long as the player is actively trying to win the game without being a detriment to their team. This isn't something punishable. Try giving them the benefit of the doubt. Not everyone is a troll, and sometimes they can really surprise you. Often times it works simply because nobody knows how to go against unconventional picks.
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