• May your dice roll high and your spirits soar higher.
• In D&D, dragons befriend us, dungeons enthrall us.
• Life is a quest, D&D is the map.
• A roll of the dice could mean death or glory.
• Never trust a smiling Dungeon Master.
• By the roll of the die, our fates lie.

And these are far from all the quotes you can read here https://thatonerule.com/rule/dd-sayings-quotable-lines-and-inspiring-phrases-from-dungeons-and-dragons/