Usually go human Wizard in a DnD game because
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THEY HAVE THE POWER

but I don't know how DnD's current mechanics -let alone this game's, will roll. 3rd edition you could nuke enemies then have the team rest then repeat. 2nd edition spellcasters had a suite of tools for most situations and it was much more tactical. New/current edition? You tell me.

Will depend in part on party members. If likeable party members fill a role, no need for redundancy.