This doesnt always work, i lvled up arthas and the lvl 13 skill is set to 4 even if there are only 3 skills available to choose from. if you correct the skill file and change the 4 for lets say 1 or 2 the bot goes nuts anyways. there are only red letters in the text box or something like this:
Skill is not available, skill name has been changed > ArthasDeathAndDecay < ?
Available skills:
HoldFire, move, attack, ArthasDeathCoil, FountainDrinkOnCooldown, ArthasFrostmourneHungers, SmartCommandUnitInteraction, CaptureMacGuffin, CaptureMacGuffinTwo, ArthasFrozenTempestCancel, ArthasFrozenTempest, ArthasArmyOfTheDead, ArthasGhoulMagazine, ArthasMasteryGhoulMagazine, ArthasSummonSindragosa, FountainDrink, UseVehicle, Dismount, Mount, StormInventory, ArthasArmyOfTheDeadSacrifice, ArthasHowlingBlast, PortBackToBase
Skill is not available, skill name has been changed > ArthasDeathAndDecay < ?
Available skills:
HoldFire, move, attack, ArthasDeathCoil, FountainDrinkOnCooldown, ArthasFrostmourneHungers, SmartCommandUnitInteraction, CaptureMacGuffin, CaptureMacGuffinTwo, ArthasFrozenTempestCancel, ArthasFrozenTempest, ArthasArmyOfTheDead, ArthasGhoulMagazine, ArthasMasteryGhoulMagazine, ArthasSummonSindragosa, FountainDrink, UseVehicle, Dismount, Mount, StormInventory, ArthasArmyOfTheDeadSacrifice, ArthasHowlingBlast, PortBackToBase