"What are the odds for that?" - Get any boss killed by a natural falling star
"Fast, painless death" - Deal over 10,000 damage in one second
"Almost insta-death..." - Deal over 20,000 damage in one second
"Still not overpowered enough." - Deal over 30,000 damage in one second
"Wow, so OP!" - Deal over 1,000 damage in one shot
"That was quick..." - Defeat a boss in one shot (counts piercing. so killing the destroyer with a rainbow gun / killing EoC with a tsunami WILL count.)
"Vampire Hunter" - Kill a vampire with a stake launcher
"Bloodshed" - Defeat over 500 zombies in one blood moon or solar eclipse
"Bloodshed II" - Defeat over 1,000 monsters in any invasion
"Bloodshed III" - Defeat over 10,000 monsters in the Pumpkin or Frost moon
"MULTI KILL!" - Defeat over 10 monsters with one piercing shot. Counts only deaths, not all damage.
"The Dark World" - Get over 3 solar eclipses in a row
"Bloodshed IV" - Get over 3 blood moons in a row
"Two vs. one" - Plant the corruption in a crimson world or vice-versa.
"FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU" - Accidentally trash a Terra Blade
"Feeling evil?" - Kill any town NPC with rotten eggs / landmines