How to complete most hard map in atlas?

Hi there.
I found a way to easy complete hard atlas map.
I had striken LAVA LAKE with orb of alchemy and get so *** deathly mods.
So i used an orb of annulment to kick off one of the deadly mods with succes,
and then, and again, and get rare map with no mods!!!
Then I corrupted map and get with 25% chance:
- map is corrupted
- map is unidentified.
And succes again!

better (and cheaper) idea:

alt spam to 2 mods that dont do anything, then regal.

BAM 3 easy mod rare map. now vaal

25% unid (no change)
25% corrupt (no change)



ezpz.

You can use maps in a tiny's trial. Use the one with annuls and you can just alch + annul and you have a blank rare map.