The problem with the Summoner is SE wanted to make them a dps but they made them a DoT Class. DoT is pure crowd control and since this game uses the holy trinity DoT classes should be regulated to healing. Unless SE adds a Support Role the Summoner should get rebuilt from the ground up in order to stay damage dealing. The Summoner should be separated from the Arcanist and become a Pure Summoner using Summoning magic and revolve around the Summons.