What spell slot count formula can I use to base my homebrew

What spell slot count formula can I use to base my homebrew spell slot calculator 5e This calculator uses the multiclassing rules found in the 5th Edition Player's Handbook, with the assumption that artificers will be treated as half-casters, spellbinding mystery slot Calculate the total amount of spell slot levels a sorcerer has at each level and say they have to spend half of that The idea came from the

spellcast slot If you are able to cast the same spell and you have it prepared , you cast it, creating a counterspell effect