Mages can't use maces in WoW Forever, one-handed or two-handed.

They can use daggers, one-handed swords, staves and wands, and nothing else. No axes, fist weapons, polearms, two-handed swords or bows.

This comes from Forever's own game files: the client's weapon skill table (SkillRaceClassInfo, build 1.60.1) lists which classes can learn each skill. Blizzard hasn't published a weapon table of its own, so we checked the files rather than trusting Classic memories.

Mage talent trees in WoW Forever
Mage talent trees in WoW ForeverImage © Blizzard Entertainment
Weapon Mage
Daggers Yes
Fist weapons No
One-handed axes No
Two-handed axes No
One-handed maces No
Two-handed maces No
One-handed swords Yes
Two-handed swords No
Polearms No
Staves Yes
Bows, crossbows, guns No
Thrown No
Wands Yes

You still have to train it

Weapon skills are learned from weapon masters in the capital cities. If something on the Yes list won't equip, train the skill first. Every class is compared in our class weapons guide.

Stats matter, not the weapon type

Mages don't hit things with their weapon, so a staff, dagger or sword is only a bag of stats. Take whichever has the most Intellect and spell power for your level. A one-hander lets you also carry an off-hand item.

Get a wand early

A wand is the Mage's ranged attack between casts and a cheap way to finish enemies without spending Mana. They drop often while leveling.

See the Mage guide, the leveling plan and Mage professions.