I think ALSB would be offended if you'd chose Keldorn...
But anyway, Keldorn is a tank, a real fighter, and Aerie is a mage, who normally stands in second line during a fight.. Depends on your party what you need.
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I am committed to restore your faith in extreme violence...
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Overlord Executioner, Slayer of Fluffed Beings
Member of Clan HADB
Supreme Warrior of Myst
Official Entertainer in Cloudy's Cafe