Dungeons New Way To Get Corrupted Dungeon Keys

I've recently been trying to get a lot of corrupted keys but sometimes it can be really hard to find the ones you need. I've looked around and it seems that a lot of people are having the same issue so, here's my idea:

Instead of having to find guardians for the broken keys, why not have a NPC do it for you? Add a new NPC called the Key Corrupter and make it so you can bring a normal version of the dungeon key you want to him and for a price (haven't decided yet) he will turn that key into the broken corrupted version (ex. decrepit sewers key into corrupted decrepit sewers key) You can also bring 3-5 of the same dungeon key and he can make a corrupted one for free. The number of keys you will need will scale with what level dungeon key you want (3 for decrepit sewers, 5 for undergrowth ruins)

So, is it a good idea? Feel free to criticize!

 

Just sound weird for a being capable of creating corruption to really exist as an npc that is willing to make you keys without trying you or something

 

that seems very op especially the common regular key guards like DS and IP

 

Maybe there could be something near the Nether Portal to corrupt the keys, but a SUPER HIGH cost for it, otherwise it would probably be op

 

Check the new patch notes.