Do PCs need to take a long rest before leveling up?

Do you count summoned creatures to calculate the CR difficult?

Should I do a new card reading at the start of every Curse of Strahd session?

Is Wild shaped Druid considered a beast for the purposes of a dryad’s charm ability?

Is the extra 1d8 damage from the Ranger’s Colossus Slayer mandatory?

Does Open Hand monk’s ability knock the Tarrasque prone?

What makes a god greater or lesser?