Almost forgot about this one.
Beat plantera with a friend in expert mode. Dropped bag, potions.... JUNGLE KEY!!! (yes, first plantera on that world) (not sure if they gave plantera a chance to drop biome keys, wich is what i thought at first). I almost didnt notice it, and was so surprised.
Started a new normal mode MP (One melee one summoner). First 2 piranhas killed both drop hooks. 1 enchanted sword found after a while. First minute on the world: Slime with 2 gold spawns. Then pinky. (No slime staff though) First golden chest: Hermes boots. Tons of ore found on first mining trip. we can almost kill EoC after around 2 hours of lucky playing.