The Conjuror
One thing I hear asked a lot in OSR circles is how to do spellcasters who use freeform magic¸ in the vein of Ars Magica or Mage: the Awakening.
Well¸ here's my response to that¸ the Conjuror. It's pretty simple. Rather than spell slots and levels¸ the conjuror gets to combine Aspects and Processes to create effects on the fly. Simply combine 'create' and 'fire' to make a fireball¸ or similar.
It's pretty simple. I made some guidelines for how these effects might work in play. Broad and simple where you need numbers¸ and open to GM interpretation.
This is a class about improvisation¸ both for the GM and the player. The player is constantly finding new ways to use their tools¸ and the GM needs to come up with rulings on the fly for how that will work. If you like that style of play¸ you'll like this.
Oh¸ and I added some Harry Clarke pictures¸ because they're cool and spooky.
Have fun!