Rend mechanics 2.6.7

Barbarian
3

Tested everything I could think of to test about rend. Here is the summary:

  • Rend’s base duration is 6 seconds, not 5 (the tooltip is straight up incorrect).
  • Rend’s selfcast damage is only calculated off mainhand. The off-hand can be any off-rolled weapon for supporting purposes (CDR, AD etc.). WW, and therefore Ambo’s, oscillates between mainhand and off-hand.
  • Rend scales with CHC & CHD but CAN NOT crit.
    • Each Rend tick has (1 + CHC * CHD) as a separate multiplier.
    • Only CHC and CHD that you see in your detail sheet, will scale rend. Any debuff-CHC (Iceblink, Multishot, Corpse Lance, Bash, etc.) will not scale Rend.
    • Battler Rage:Bloodshed has 0 effect on/for Rend damage (except for the base rune crit), because Rend does not crit.
    • Battle Rage:Into the Fray does not have a cap, increases CHC in sheet and therefore works with Rend.
  • A Rend instance snapshots CHC upon cast.
  • Selfcast Rend does proc Area Damage.
  • Rend applied by Ambo’s does not proc Area Damage.
  • Ambo’s has a proc-coefficient of 1 and applies a Rend on each WWs tick.
  • Ambo’s does apply the equipped rune from the skillbar.
  • Ambo’s does oscillate between main and off-hand, since WW does.
  • Ambo’s pride can’t exceed the Lamentation cap of 2.
  • Rend:Bloodbath explosions count as a separate Rend instance but are capped at 2 due to Lamentation. This makes Bloodbath by far the best DPS rune (doubling the damage output).
  • Rend ticks every 12 Frames (0.2 seconds). Damage is accumulated and displayed every 48 Frames (0.8 seconds).

Untested: It’s unclear right now, if Ambo’s override selfcasted Rend instances. There are 3 outcomes:

  • Rend from selfcast and Rend from Ambo’s share the same cap from Lamentation and “the newest” instance overrides the “oldest” instance.
  • Rend from selfcast and Rend from Ambo’s share the same cap from Lamentation and “the newest” instance is ignored.
  • Rend from selfcast and Rend from Ambo’s have a separate cap (2 each).

It’s very tricky to conclusively test the last interaction; I can’t think of a test setup that can do it as of now, since Ambo’s resolve in 1s (a bit too quickly).

//Edit: Clarified interaction with DW and Ambo’s Pride, which wasn’t specified earlier. Since WW oscillates, Ambo’s autocast does oscillate. Rend selfcast doesn’t oscillate.

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