A list of potential cures for the Calling, that we know about, that BioWare has apparently forgotten
Andraste's grace: it's not specified whether the flower the kennelmaster has you pick in the Korcari Wilds is Andraste's grace or if the game just needed a one-off asset and decided to reuse one they already had. However, in the dark future in DAI, Leliana is found to have unusual tolerance for the taint, and in DAO she talks about her mother pressing her laundry with dried Andraste's grace flowers, so it makes you wonder. Anyway, the flower stops Barkspawn becoming a ghoul and seems to make them immune to the taint from that point on.
Maric's longsword: he finds it in the Deep Roads and is suprised it isn't covered in the same Blight-rot as everything else - until, that is, he touches the sword to a patch of it and sees it wither away. Whether it's the dragonbone the sword is made of or the runes on the blade is difficult to say, though if it was just the dragonbone then it would make sense for that to be a more well-known property of the material (and would have been an interesting reason for why dragons were hunted to extinction). If Alistair carries it with him, doesit slow the progession of the taint through his body? Does he know its effects, and give it to the HoF to help keep them safer on their journey to find a permanent cure?
That obsidian dagger Duncan finds in The Calling: the dagger belonged to First Enchanter Remille - who also gave the expedition members brooches that accelerated the spread of the taint. iirc the both the dagger and the brooches are made by the Architect with Blight magic, which means the darkspawn magisters have more knowledge of how the Blight works than the Chantry attributes to them.
Whatever the fuck is going on with Avernus: he hasn't managed to cure himself yet, but he's managed to make it to 200 and the Warden can let him continue his experiments if they don't kill him - and he'd be a really useful resource if the Warden later wanted to send him other potential cures for testing.
Dragons: they have an ability to isolate the Blight in their bodies by forming crystaline cysts around the initial infection to stop it spreading. Useful if it can be more widely applied. Also, it's implied that Maric's reaver blood, which Calenhad gained by mixing his blood with a dragon's, is what somehow cured Fiona of the taint, kinda like a reverse STI, BUT in the Deep Roads they went through an area where the walls were coated in a pale, chalky substance suspiciously devoid of Blight-rot and she touched it, so I'm a bit suspicious of that.
Blood magic: makes sense since the taint is a problem that starts with infected blood. There are two major instances in DA canon where blood magic has been used to purge the taint from an object or being (both by elves btw). The first is Isseya using it to draw the taint out of a clutch of unhatched griffon eggs, which she says is only possible because the taint hasn't yet taken over the hatchlings' bodies to the same extent that it had with the adult griffons. The second instance is Merrill purging the Blighted eluvian in DA2. It's insane that Anders - who is a reluctant Warden and who possibly knows the HoF seeks a cure - isn't more excited about this. She literally removed the Blight from a fully tainted object. Since Isseya proved the same can be done with living tissue, it's probably the closest we've come to an actual cure, but since it also took years there's no telling if it could be a practicaly solution for all Wardens
ellievsbear
areudirty
theartofmadeline
romaincrisis
gummygunk
prguitarman
