Originally Posted by
Archimtiros
Not sure where you heard this, but spell data still associates BT and HLR.
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Doesn't go down that far and I think you misunderstand the reduction formula:
CD / 1.haste = new CD
(4.5 / 1.50 = 3)
You see, it doesn't actually reduce the cooldown, it increases the rate at which the cooldown refreshes. In other words, 100% Haste wouldn't reduce the CD of BT by 100% and cause it to have no cooldown, it would make the CD refresh twice as fast, causing it to have a cooldown of 2.25s.
50% Haste, which is probably the most reasonable number to stack to with Frenzy, reduces BT to 3s and caps the GCD at 1s. While BT can be reduced past this cap, it can actually be detrimental, since the GCD doesn't reduce anymore. This makes filling GCDs wonky as BT starts to overwrite them. Even if this weren't a problem, Haste as a stat would still lose significant value as a result of the GCD cap.