Reach level 69 with every ascendacy class

This is just awful

identify 99 atziri's promise

You would have to run even more useless atziri's to get it, on the other hand this would just be a "buy with currency" challenge which is plain boring.

open izaro's treasure in the eternal lab (500)

Doesn't change a lot, probably still at least 100 runs.

Kill Yriel, the feral lord in the pale court

Do you mean only 1 of the 4? Which would make the challenge double as long as before? Sounds stupid, pale court end game grind sucks because it is far too expensive for most and already takes too much of them to be worthwhile

Something league related that can't be completed solo

Congratz, relying on random people if you don't have friends that play PoE is awful

Complete tier 16 maps (40)

Sounds like defeat 40 guardians for me

Buy Headhunter from Cadiro

You know that this doesn't happen for 99,999% of the population in a whole league EVEN IN PERANDUS LEAGUE where you didn't have to pay Zana for it.

I don't even know what to say about those suggestions.