Best way to earn seals 1.21+

[AndrewN]

I'm talking about Batraal chests. With an effort of like 20-25min you will get 4 chests with an item, each worth 1.5k seals handing it in. Do those 4-5 times, and everyone in the group will have 6k seals.

The items on the way to Batraal are just "extra"

But considering your comment I assume you never cleared DH, otherwise you'd know Batraal drops are guaranteed.

Unfortunately the items aren't guaranteed, when we did it on Monday a couple of chests only had Vampire Plants in it. Still, I agree with Thug (I should do, he organised the runs after all) that the DH runs are very efficient, I came away with 5450 seals after an evening of running (3 or 4 hours), that's the equivalent of 50 GC leves or about 12.5 hours of continuous effort and a lot more interesting.