A 1st level spell fits into a slot of any size, but a 9th level spell fits only a 9th level slot. Page 201, Dungeon & Dragons Players Handbook 5th edition. One class whose spell slots don't work ...

Perhaps that's for the best, all things considered. Speaking of underused spells, Transport Via Plants is a Druid-only spell ...

The new rulebooks are an update to the existing D&D 5th edition, which leaves many players wondering if they should make the switch.