Most people who complain about Sorcerer haven’t played one.
For PvP:
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Summon Familiar is very OP there, you only have to auto-attack your enemy and they will chase them down.
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Summoning causes VERY good damage at PvP, his attacks are not reduced that much by def.
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You can ride summoning to avoid most types of damage.
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Templeshooter’s XBOW is very OP if your enemy is CC’d
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All summons help you against AoE because they consume AoE attack ration from them with their AoE defense ratio.
The point is, most people choose CC classes as a Wizard for PvP, Sorcerer has a lot of hits and put up more than decent damage, has a good skillset for PvP, anyplace you leave Templeshooter holding is a place no enemy will come near.