What triggers WB to go into 'last hit' mode?

[Andy]

I am trying to put together a formula to calculate at how much damage we should be at a specific point in time to make sure that we can kill the WB. We will use it to determine if we are falling behind and need to have some people boost more.

I know that the simple formula is total_power * 58 / minutes_left but that does not account for the 2 or 3 rounds in 'last hit' node where damage is a lot less per round.

What I would like to do is to allow for 2 minutes of 'last hit' mode but in order to do that I need to know what triggers it. If it is a specific amount of damage left then the formula would be

((total_power - last_hit_trigger) * 56 / (minutes_left - 2)) + last_hit_trigger

Does anyone know what triggers 'last hit' mode?

[mattp169]

Also you would need to know

Is the boss officially killed in last hit mode or in normal mode. It may be set so as long as you get to last hit mode in the 58 mins you have beaten him

[Klepto]

I've noticed that last hit mode goes for something like 3 rounds at most, so figure 3-4 minutes for last hit mode.

[Mithrandir]

You're thinking too much about this

[Klepto]

Required Health to be under at Given Time = RHGt
Maximum Health of boss = Mh
Time Available to Kill boss = TAk = 54 (Constant value, 2 minutes given for prep, 4 for last hit mode)
Minutes after Start of Hour = MSh

RHGt = Mh - [ Mh / TAk * MSh ]


Example for 50 mill health Cerb at 23 minutes after the start of the hour:

RHGt = 50,000,000 - [ 50,000,000 / 54 * 23 ] = 28,703,704 health that you must be at or below to guarantee a kill at that time.

[Andy]

I looked careful during our 250m Cerb today and it looks like it is triggered when all 250m damage is done and the damage for 'last hit' mode is additional and not part of the 250m. That makes the formula a lot simpler. Since it takes as many as 3 rounds to get the last hit then you want to be able to do the full stated damage what there are at least 3 minutes left.

Required Health to be under at Given Time = Total Health * 55 / (Minutes Left -3)