Multiclassing

Sometimes you'd want a sort of mish-mash of concepts that mechanically speaking a single class simply can't offer you, but swapping one talent/power for another doesn't seem like it's enough.  While 13th Age will be releasing multiclassing rules in 13 True Ways, I'd like to offer an alternative, based partially on how D&D 4E does it.

Simple Dabbler

Special: You cannot take this talent if you already chose Complex Dabbler

Choose between Barbarian, Paladin, or Ranger (must not be the same class as your current class).  You count as this class when choosing talents.

Champion Feat: If you chose Barbarian, you gain the Barbarian Rage talent. If you chose Paladin, you gain the Smite Evil talent. If you chose the Ranger, you gain a free talent.

Complex Dabbler

Special: You cannot take this talent if you already chose Simple Dabbler

Choose between any class except Barbarian, Paladin, and Ranger (must not be the same class as your current class). You count as this class when choosing talents.

Adventurer Feat: You gain one power (flexible attack, spell, prayer, shout, etc.) from your chosen class. At higher levels you can replace your chosen power with a new power from your chosen class.

Champion Feat: You can replace any or all the powers you currently know with powers from your chosen class. The new powers must be at least two levels lower than your current level.