(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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afraid to tell players YES
underestimating the players
incoherent NPC motivations
overuse of time travel
no plan for campaign end
relies way too much on improv
doesn't vet the character sheets
focusing too much on a single PC
abusing rule zero (DM always has final say)
everything is a fetch quest
excessive worldbuilding
DMPC's, generally
WAY too ambitious
overuses rule of cool
not sleeping before the session
overestimating the players
doesn't read player backstories
making death meaningless
too many different stat blocks in combat
the DM forgetting they're ALSO a player and their fun matters at the table too