Open the door to the Temple of Euryale

Acquire the Golden Fleece

Whip the Steeds of Time

Acquire Cronos' Rage

Acquire Rage of the Titans

Power up any item

Climb from the pit of Hades

Kill the Enderdragon.

Use a saddle to ride a pig, then have the pig get hurt from fall damage while riding it.

Lead a caravan containing at least 5 Llamas.

Relieve a Blaze of its rod.

Eat a Notch Apple.

Mine 1,728 Cobblestone and place it in a chest.