Shamans can use two-handed axes and maces in WoW Forever, and Blizzard made it a baseline ability rather than a talent.

They can also use daggers, fist weapons, one-handed axes and maces, and staves. Swords, polearms, wands and ranged weapons are out.

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.

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

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.

Enhancement wants a two-hander

Blizzard's Shaman post lists two-handed axes and maces as baseline for the class. Dual wield isn't mentioned anywhere, so plan your Enhancement gear around one slow two-handed weapon.

Casters and healers

Elemental and Restoration use a one-hander with a shield or off-hand, or a staff. Pick by Intellect and spell power.

See the Shaman guide, the leveling plan and Shaman totems.