One of my players asked if he could spend xp on specializing in a specific spell, and get a yellow die to casting that one spell.
Yellow dice are potent, but on the other hand it's 1 xp, for one spell.
So I was considering saying, that each rank you have above a given spell, allowed you to spend 1 xp to get a yellow die to that spell.
So a rank 3 wizard could spend 2 xp on rank 1 spells, 1 xp on rank 2, and none on rank 3 spells.
Sounds pretty harmless that way, right?
Also considering allowing these xp to be spend on:
- Lowering recharge timer
- Raising base damage
- Increasing range/area
But these would likely be a nightmare to keep track of, and also risk wizards becoming "one-trick ponies", casting the same spell over and over.