Thursday, February 11, 2016

Bloodthirster Vs Knight: A Re-Visit



When I originally wrote the article about a Bloodthirster fighting an Imperial Knight there was quite a lot that got simplified.  The destroyer table makes mathematical calculations particularly tricky.  Since then I have reworked my figures and now have more accurate results, and the new results are a bit more dramatic.


The Knight:
The Imperial Knight has one main advantage, initiative.  Since it has a chance to kill the Bloodthirster before the 'thirster gets to swing, we will start here.

Chances of killing the Bloodthirster without the charge: 16.71%
Chances of killing the Bloodthirster with the charge: 24.68%

This includes both the chance to instantly kill, as well as dealing 5 or more wounds.

Stomping will happen at the same initiative as the Bloodthirster, but if we include stomp in the calculations the chances increase to 30.74% and 37.27% respectively.

The Bloodthirster:
Despite swinging second, the Bloodthirster has a better weapon skill and a boatload of attacks.

Chances of killing the Knight without the charge: 77.89%
Chances of killing the Knight with the charge: 90.98%

Compared to the 66% I had given in the first article, this is a huge improvement.

Putting Things Together:

Knight Charges:
Chances of the knight killing the Bloodthirster AND surviving: 27.46%
Chances of the Bloodthirster killing the knight AND surviving: 48.86%
Chances of both killing each other: 9.81%
Chances of neither one killing each other: 13.87%

Bloodthirster Charges:
Chances of the knight killing the Bloodthirster AND surviving: 17.98%
Chances of the Bloodthirster killing the knight AND surviving: 63.01%
Chances of both killing each other: 12.76%
Chances of neither one killing each other: 6.25%

With the more accurate changes, the odds swing even further towards the Bloodthirster winning combat.  Bloodthirsters are going to put out some serious hurt, but there is still a significant chance that they are going to get killed.  Any kind of de-buffs on the knight are also going to increase your survivability.  Bringing along a maulerfiend (with lasher tendrils) or allying in a psyker is going to make your Bloodthirster much more effective.

As I had mentioned previously, it is recommended that you run units in pairs.  A blood thirster on its own is scary, but two Bloodthirsters or a Bloodthirster and a maulerfiend is going to present a more substantial threat.

8 comments:

  1. It actually surprises me how good of a chance the BT has. I knew if the BT got the chance to attack it wouldn't be pretty, but I guess I overestimated the chance the Knight killed him before he could do anything. I always shied away from taking that variaton of the 'thirster because I figured most things it would be good against would just kill it before it went anyway.

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    1. In most situations, I think the standard blood thirster is going to be the most efficient option, but not against knights, superheavy vehicles, and gargantuan creatures. I don't know of any other superheavy walker or gargantuan creature that can get 8 STR-D attacks on the charge.

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  2. I've been looking at the Curse of the Wulfen Campaign book alot and while everyone is crying about the core tax (Nurgle is actually decent and cheap) I think it is pretty powerful that you can now simply add a D-Thirster, Belakor, and/or Fateweaver to any army as their own formation(s).

    Do you think it could be possible for an army consisting of like 6 Blood Thirster Variants to do well?

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    1. 6 Bloodthirsters? Probably not. A mix of 6 mostrous creatures including Bloothirsters? Absolutely.

      I'm working on a write up of the incoming formations, so keep an eye out for the next couple of days.

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    2. Wooohooo I'm excited. Although someone did just point out that the command unit option from curse of the wulfen book is not its own formation >.< sad panda

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  3. This post depressed me because I had this exact scenario over the weekend where a D-thirster assaulted a close combat knight (had 5 attacks base) and he landed a single hit and rolled a 6 to one shot my blood thirster :( So I now see the odds of that happening and it just makes me a sad panda :(

    Does your math assume a 4 attack knight? would that extra attack make much of a difference in the %s?

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    1. 3 attacks without the charge, 4 with the charge. It ups the chance to kill a bloodthirster from 16% to 24%. Approximately a 1/6th chance to a 1/4th chance. Not great, but still significant.

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    2. Ok, a 1 out of 4 chance is not that bad. I don't feel so robbed then :P

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