That being said, I think I've mentioned it before, but I really like DCC's "Deed Dice" and will probably port them over to
Shadowdark.
I'll try it with Fighters first, and I'm planning to make them wait until they have a +2 attack bonus (swap for a d4 and try a deed if you want). Any fighter who gets a 3-6 on the Talent table could try for a Deed at Level 1 - but
only with their Mastered Weapon. And all fighters could try at Level 2.
Another tweak would be to let a character trade part of their attack bonus from
any source for a deed die (+2 for a d4, +3 to get a d6, etc.). But you'd probably want a level-based restriction on the size of the die, and max it out at a d12.
Stunts similar to this are also one way Professor Dungeon Master allows people to use his
Deathbringer Dice, so one could let characters use Luck Tokens to trigger martial stunts instead. Must ponder which makes more sense...