Corrupted t15s to get t16s is ridiculously rare

I collect all t15s with decent affixes to corrupt or use on maps i rly want to farm.
I had collected around 12 of these, i corrupted all of them.

0 t16s
1 t14 (disenchanted)
1 t15 with 6 decent affixes (keep for tower)
5 t15s with garbage affixes (disenchanted)
5 t15s corrupted with same/similar affixes to use later.

Finding maps with a baseline +1 from corruption/cleansing is already ridiculously rare, plus you want it to have a boss on top to get the 4th map boss point.

On top of that making t16s is extremely hard

lvl 82 maps provide very important loot, and its not like we are gonna get the loot we need by doing 5 lvl 82 maps, 90% of the rewards will be garbage so getting the gear and skill gems from t82s is already hard enough, making it extremely rare to find those maps makes it feel quite worse.

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Ash#9143 wrote:

Finding maps with a baseline +1 from corruption/cleansing is already ridiculously rare, plus you want it to have a boss on top to get the 4th map boss point.

This. They change one busy work (towers) with another one (looking for a +1 to area).

I really don't know what was so wrong with corrupted areas all being +1

Being hens teeth rare doesn't make a whole lot of sense

T15+Corrupted= T16
T16+Corrupted= T17
T16+Corrupted+Iritated=T18
T16+ double Corrupted+Iritated= T19

T20?? Didn't see any yet.

82 map are for sure to hard to get and i actually don't even know how to get them ? like the corruption on my atlas don't give the +1 lvl like in 0.1. All i can do is iritated+T16 for a lvl 81 what am i missing ?

The only way I managed was to find a +1 on a corrupted / cleansed map (it's one of the random node boons) with a boss on it and a tower in range and then irradiate as many maps as possible and hope it gets hit