Shillelagh and other spellcasting stats

So there are several ways to get the Shillelagh spell, many of which allow you to select the stat you use to cast it.  Many are straight forward, the feat lets you pick it when you select it now, you can pick it up through a Warlock pact, bards and their spell stealing ways.  So I come to Barbarian or Pugilist.  Both have subclasses where CON is their spellcasting stat.  Can you use Shillelagh with CON?

It seems unlikely in WotC material, but if you're including third-party classes and subclasses, then probably.

(You could always just homebrew such a subclass yourself, after all, though it may not work on DDB.)

Quote from Hedd666 >>

So there are several ways to get the Shillelagh spell, many of which allow you to select the stat you use to cast it.  Many are straight forward, the feat lets you pick it when you select it now, you can pick it up through a Warlock pact, bards and their spell stealing ways.  So I come to Barbarian or Pugilist.  Both have subclasses where CON is their spellcasting stat.  Can you use Shillelagh with CON?

The feature that grants you the spell tells you what spellcasting ability you're meant to use for it. If it says the spellcasting ability is Constitution, then that's what you use, odd as it might sound.

The Pugilist's spellcasting subclass can't grant you Shillelagh, though, since it's not on the Warlock list. If you're a Pugilist with that subclass, but you're getting Shillelagh from some other source like a feat, you use the spellcasting ability specified by that other source, not Constitution.

There aren't any official Barbarian subclasses that use Constitution as a spellcasting ability, but perhaps there's something in a third-party source. If there is, and it can grant you the Shillelagh spell with that spellcasting ability, then that's what you use.

Guide background gives you access to Magic Initiate Druid, which gives you access to Shillelagh spell. And you can choose int, wis, or cha as your spellcasting abillity.

A paladin built around this could use charisma as their spellcasting ability, lower their strength, max out their charisma instead, and get both good attacks with shillelagh and a good aura of protection.

A fighter built around this could lower their strength and max their wisdom and be so perceptive that its difficult to sneak up on them

An artificer built around this could max their int and use shelelagh to do good attacks.

Note that if youre considering a class that only gets one attack per turn, then TrueStrike spell is probably a cheaper way to use spellcasting abikity for weapon attacks.