The Nobility In Decay set is still somewhat bugged.
Cooldown
The Cooldown reduction/Bone Tyrant ability slotted DOES NOT seem to work. The tooltip states that the base cooldown is 20 seconds, minus 2 seconds per Bone Tyrant ability slotted.
I tested this by slotting 3 Bone Tyrant abilies (should now be 20-6=14 seconds cooldown) and timing the set proc. with Spirit Guardian (6 seconds duration).
Even while spamming Scythe to proc. Nobility in Decay, 16 seconds of Spirit Guardian dissipated and I had to wait even further afterwards for the set to reactive. This to me implies that the cooldown remains at 20 seconds, irrespective of what abilities you slot.
I still think it's a decent set and I will continue to use it, but it does not work as advertised.
Tooltip
The tooltip needs a going over (see image for in-game state)
For one thing it says "up to 0%". It does function as intended, as far as I can tell, working up to 12%, but the tooltip is obviously wrong.
Secondly, there's a broken line at the very start:
Casting a Bone Tyrant ability while in combat grands you Death's Favor and for 16 seconds...
Which should have said "
and Beautiful Corpse for 16 seconds..."
Furthermore, the bottom of the tooltip states that Death's Favor is consumed when using a corpse consuming ability, which is
not true - this is the effect of the secondary Beautiful Corpse buff.
Again, the set actually works as it's supposed to: you get two separate buffs, and only the Beautiful Corpse buff is consumed by casting e.g. Necrotic Potency, with Death's Favor remaining in place.
tl;dr: Cooldown reduction is fake advertisement, and tooltip does not advertise how good the set actually is.
I think it is central to ESO's well-being to critique the developers when they change the game (or fail to change something).
But the negativity can be exhausting, so I vow to post 50/50 negativity and appreciation.