I want to level in groups as a Wizard

[Troxx]

All that aside, wizards do add value to groups.

If I were a wizard I’d keep relevant succor spells up if hunting in dangerous places and keep useful utility spells on standby. For dps try to hover around 50% mana in chain pull or semi-chain pull situations. Keep enough buffer for fast hard burns when needed but also have some room to make that inevitable time productive. Starting a 5 minute group afk with 80% mana is wasted potential.