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This means with zero CDR affixes on your gear, you’re looking at no more than 10-15 seconds between casts of WOTB. Now add in 1 second reduction for each time Rend hits an enemy (due to ORotZ) and you’re most likely looking at 10 Rends at most to reset WOTB. So, Rending 15 times resets the cooldown on WOTB. Rend costs 20 Fury which means for every Rend attack (regardless of whether it hits an enemy or not, you could just be spinning down a corridor towards the mobs) the cooldown of WOTB is reduced by 6 seconds due to the IK set bonus.
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Obsidian Ring of the Zodiac reduces the remaining cooldown of one of your skills by 1 second when you hit with a resource-spending attack. The Boon of Bul Kathos passive reduces this by 30 seconds, to 90 seconds. WOTB has a default cooldown of 120 seconds. Reduce the cooldown of WOTB and COTA by 3 seconds for every 10 Fury you spend on an attack. The 4-piece bonus of the Immortal King set is…
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