If your decks goal isn’t to commander beats theres two choices: either a) your commander is five power or greater and is a five turn clock or b) your commander was never going to ‘naturally’ kill someone via commander damage. A five turn clock isnt that big of a deal to keep track of mentally.
If your decks goal is commander beats: it’s your responsability to keep track of it, and again if big enough you should be killing people in like three hits max. If you need to keep exact track of it then one or two 20 sided die should be sufficient as you shouldn’t be spreading out the damage anyways.
If your decks goal is commander beats: it’s your responsability to keep track of it, and again if big enough you should be killing people in like three hits max. If you need to keep exact track of it then one or two 20 sided die should be sufficient as you shouldn’t be spreading out the damage anyways.
Also, why would you spread commander damage across all 3 opponents at once on a voltron deck?
Edit - Also also, why not just use two d10s to track your life.