Progress to Fighter (sage ability)
Progress to Fighter is an authority-status sage ability, in the study of Instruction, granting the character the ability to transform non-levelled soldiers into 1st-level fighter characters, with commensurate hit points, attack dice, weapon proficiencies and sage abilities. Similar to the ability to train a soldier, the instructor initialises the training with a physical regimen, followed by lengthy and patient instruction in which some part of the instructor's knowledge is passed along. To partake in this instruction, the student must be a soldier, and must have accumulated 1,500 experience.
A natural limitation exists in that the character can only teach what they personally know. For example, a thief with this instruction skill, gained through jack-of-all-trades, could not actually teach the proficiency of weapons beyond what the thief possesses. True enough, the soldier already has proficiencies, which can then be continued along. Further, it assumes the character doing the training already has a THAC0 better than 20, which is what the first-level fighter would have at the end of training. Hit points, on the other hand, are not so limited; the soldier would add 1d10 following the training, regardless of the actual class of the trainer. Sage abilities are of course another element, but they are covered separately, below.