The best way to keybind in Classic WoW... using a system that makes sense.

Key-Binding Guide

Xaryu’s main advice is to build a consistent system that feels natural to you, rather than copying his bindings exactly. The goal is to make actions fluid in both PvP and PvE.

• Use a consistent modifier system. On his Classic WoW mage, unmodified keys cast abilities on his current target, while Shift + the same key casts the corresponding mouseover version. For example, Fire Blast is bound to a mouse button, and Shift + that button casts it on the character under the cursor. On live WoW, he uses focus macros instead of mouseover macros.
• Keep frequently chained abilities easy to press in sequence. Mage examples include Frost Nova, Frostbolt, and Cone of Cold. Spammable abilities such as Frostbolt should generally be on accessible, unmodified keys. The same principle applies to common combos for other classes.
• Make related modifiers predictable. Xaryu binds Ice Block to a mouse button and Cold Snap to Shift + that button, making the related abilities easy to remember and use together. He also binds some rank-one spells separately, since Classic WoW often requires multiple ranks.
• Arrange action bars for quick visual checks. Group related abilities so you can quickly see what is available, such as:
  • Defensive abilities and major cooldowns, such as Ice Block and Cold Snap
  • Mana and health resources, such as potions, bandages, food, and water
  • Similar spells, such as Ice Barrier and Mana Shield
  • PvP trinkets, Counterspell, and grenades
• Reserve harder bindings for less frequent actions. Abilities used often or in a combo should be easy to reach. Rarely used abilities can go on less convenient keys—or be clicked. Xaryu notes that clicking infrequently used buffs or conjured supplies is not a major issue, though abilities needed in combat should be bound.

Featured gamer/source: Xaryu. Twitch chat is credited with reminding him of the trinket name “Tidal Charm.”