"Gateway Drug" - First Magic Item
"And... SOLD!" - First Auction Win
"Vintage Wares" - First Artifact
"I'm the captain now!" - First time you have the key info and need to debrief a town mod.
"Silver Tongue" - First time you complete a combat mod without any combat
"Achilles Heel" - First time you down a BBG by finding the one carrier it has no defense against.
"Danger Zone" - Surviving an unscaled mod while under level 10
I wanted some for NPCs as well, since they're super important to the game as well.
"Switching Sides" - Volunteer to NPC for a mod.
"Pay Your Dues" - Play an entire event as an NPC
"Guild Member" - NPC an entire season.
"Loyal Opposition" - NPC an entire campaign
"Big Bad" - Get cast by plot as a major antagonist for a field fight.
"Nuclear Codes" - Play a villain with the Dragon Magic (or similar) skill.
"Am I the bad guy?" - complete a combat mod, only to find out later that it was meant to be an RP mod
"No Longer Best Friends" - be fed an enslavement antidote while enslaved
"Popcorn" - as an NPC, respawn as a creature with only weapon skill 10 times in a row
"Hail Hydra" - NPC as part of a prop monster that requires multiple people to physrep
"I get by with a little help from my friends" - use Create Undead on a friend's corpse
"I should have seen that coming" - be convicted of Necromancy and put to death
"Oops" - trigger a Vengeance ritual
"Any got a cloak?" - trigger an explosive trap and have all your possessions destroyed
"Nap time" - Waylay 5 people in one mod
"1% Club" - have 2 characters in a row, draw the black stone on their first draw
"Buying the Mod" - use more than 25 alchemy/trap globes in one fight
"Ironman" - have 100 or more armor and temporary armor points
"Make the healers cry" - Answer the healing arts question "How many Body Points are you down?" with a number 200 or larger
"Juggernaut" - Use 5 mettle's in one fight without receiving healing.
"Grin and Bear It" - use resolute against 5 attacks in a row
"Can't Touch This" - use dodge against 5 attacks in a row
"Life of the Party" - use at least 10 life spells in one event
"Stick with it" - pick up an item, only to discover it is spirit linked to you
"I meant to do that" - accidentally trigger a trap, that you use an Avoid Trap to avoid, but an ally does not