actually getting 4 key molds is as rare as getting a slime staff from a pinkyWhat kind of luck is that,one time i've got all key molds just by killing 1 monster in different biomes.
The slime staff along with the lucky coin can make some awesome coin farmsSlime Staffs are worthless and use less. I can make more money killing demon eyes and zombies. Plus its not even powerful, even with the Strongest Summoned Gear and Summon Accessories.