DND 5e Sliding Spell Slot Tracker

Highly recommend you print all pieces with ‘print external perimeters first’ check marked. For bambu users, that would be outer/inner/infill.

To keep things less confusing, I find it easier to toggle the spell slots you don't have at each level to red from right to left. That way only the spell slots you have at any given level are open to be toggled. So, if you only have one spell slot at level 9, toggle the 3 from right to left to red so only the first slot is ‘open’ for use.