v.128 - Year of the Snake Update Notes

I was doing bad math to know how many keys I'd need to get for 200...
10% per run (without quests)? That means 140keys more or less? I don't think my wallet can do it.
Even if I take advantage of the daily free key and the quest exp it might be still be over 100keys...
Unless the event lasts until late march and I get to buy some more nx.

It's not 140 but it's about 115.

Quoting Muppy:

And, just for the sake of it, you need, roughly:

7 runs/level from 176-183;
8 runs/level from 184-197;
9 runs/level for the last 3.

Even taking daily keys into account you'd still need something like 80 keys. At 400 NX for one that would total up to about 32k NX.