Home brew or house rules for my 5e games
Spell Points in the DMG are not easy to manage due to the complex costs and tables. This attempts to simplify the calculation of points at the cost of possibly not being as balanced.
Max Spell Level = Class Level / 2 (round up)
Spell Points / day = Class Level x Spell Casting Modifier
Spell Cost = Spell Level
Casting a spell of level greater than Spell Casting Modifier requires a Spell Casting Ability check where DC = 10+Spell Level
Example: Chad had multi-classed as Wizard 9 Fighter 2. His Intelligence modifier is 5. Each day he has 9*5=45 spell points. He can cast spells up to spell level 9/2(round up)=5. A Spell costs its level so he could cast 9 level 5 spells, 11 level 4 spells, or 45 level 1 spells.
Regaining spells on a short rest.