Kill 500 elite (champion, rare, or unique) enemies.

Kill Ghom.

Kill Belial.

Combine gems.

Complete all quests in Act I.

Kill the Butcher.

Kill 25 Cabal with precision shots in 1 mission without dying.

Inspect another player.

Resurrect 5 fallen players.

Dismantle 50 pieces of armor or weapons.

Reverse a decision you made in an upgrade grid.

Kill 5 enemies in 3 seconds.