Magic can be autocast using Staffs. There are currently two staffs in game - the Staff and the Corrupted Staff, both of which are craft-able from the Crafting Table or obtained from NPC Drops.

Magic Spellbook

With a Staff equipped, you can autocast magic spells if you have enough Elemental Charges for each spell.

• Wind Charge (Tier 1) - Basic Low Damage, Knockback (?) spells
• Fire Charge (Tier 2) - Medium Damage, Damage over Time, AoE
• Earth Charge (Tier 3) - High Damage spells
• Frost Charge (Tier 4) - CC Spells spells
• Void Charge (Tier 5) - Teleportation spells

Chargecrafting

Magic Spells use Elemental Charges as Ammo. Elemental Charges can be obtained via two steps.

Step 1: Mine Unstable Orbs

Talk to Vernon south-west of the bank to get teleported to the Essence Mine.