I'll take the range+healing+ally ignoring blasts of the summoner any day. The game is easy enough, no need to complicate it more with magic you can hit yourself with.
Wizards take ages to even match the range of summoner. 5 summoners is one of those setups that just demolishes most of the game with ease.
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Never underestimate the power of stupidity in numbers. ~War13104
Never stoop to the level of idiots. They will drag you down and beat you with experience.