jgsugden
Legend
The game works well, as is, but I do think a little nuance can improve it. In my campaign, you get a number of concentration points equal to the highest level spell slot you can cast. Spells have 'concentration costs' which are generally equal to the spell level at which it was cast, but I have tailored a bit for certain spells.
* For each spell you're already concentrating upon, the concentration cost of concentrating on a new spell rises by one.
* If you concentrate on multiple spells, you must be the target of one of them.
* If you're concentrating on more than one spell, you have disadvantage on concentration saving throws, as well.
A wizard at level 3 you have 2 concentration points. You can concentrate on a second level spell, or a first level and a cantrip.
At 5th, the wizard could concentrate on 3 cantrips, a 2 and a cantrip, two ones or a three.
At 7th, the wizard tops out at 2 cantips +1st, a 2nd and a 1st, a 4th, a 3rd and a cantrip, etc...
At 11th level they could concentrate on 4 cantrips, a 3rd and a 2nd, or a 4th and 1st. They can never cast more than 4 spells.
At 17th or higher level you might be concentrating on 3 1st level spells and a cantrip, 3 2nd level spells, 2 4th level spells, a 6th and a 2nd, etc...
* For each spell you're already concentrating upon, the concentration cost of concentrating on a new spell rises by one.
* If you concentrate on multiple spells, you must be the target of one of them.
* If you're concentrating on more than one spell, you have disadvantage on concentration saving throws, as well.
A wizard at level 3 you have 2 concentration points. You can concentrate on a second level spell, or a first level and a cantrip.
At 5th, the wizard could concentrate on 3 cantrips, a 2 and a cantrip, two ones or a three.
At 7th, the wizard tops out at 2 cantips +1st, a 2nd and a 1st, a 4th, a 3rd and a cantrip, etc...
At 11th level they could concentrate on 4 cantrips, a 3rd and a 2nd, or a 4th and 1st. They can never cast more than 4 spells.
At 17th or higher level you might be concentrating on 3 1st level spells and a cantrip, 3 2nd level spells, 2 4th level spells, a 6th and a 2nd, etc...