The Necromancy subclass' Grim Harvest Feat is also a good choice because it lets you regain hit points if you kill a creature - so it'll toughen up your delicate wizard, though you'll just have to be more careful where you cast.

Without that, the area of effect abilities you need to make use of are basically dangerous to everyone. We've gone for Evocation here because of Sculpt Spells, one of the Baldur's Gate 3 Feats you can access that lets you cast magic around your allies so it only affects enemies. There are eight wizard subclasses to pick, which is one of the reasons they can be so flexible and complicated to master. Another choice worth considering is the High Elf, purely for the free extra Cantrip they can cast, giving you a good extra offensive option early on. It also has Gnome Cunning which gives you advantages on Intelligence, Wisdom and Charisma saving roles. When it comes to Race we've gone with the Deep Gnome as it has Superior Darkvision to see up to 24 meters in the dark, which can help with the range. The two main things to be aware of when building a good wizard is to pump your intelligence as your primary ability and to fight from a distance.

Best mage build eternium