It does not drop from the LFR version of the encounter.
Since Crystallized Fel increases the ring's ilevel by 3, it will take 20 weeks of raiding to fully upgrade the legendary ring if you kill Archimonde every lockout.
It will take 25,000 [Valor] to fully upgrade the ring if you do not kill Archimonde at all. Since there is an effective weekly cap of 4875 Valor (depending on which Bonus Event is active), it will take a minimum of 6 weeks to do.
This page was last edited on 10 August 2020, at 15:20.
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