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The Weapon Level is an indication of the die roll necessary to defeat an attack by a weapon. It is also the minimum number of defense necessary to counteract the weapon. Lucky clover subtract their level from the weapon level, so if a level 7 weapon attacked a bunny with the Triple Lucky Clover (a level 3 clover) it effectively becomes a level 4 (7 minus 3) weapon.

Weapon levels 01 - 12 are defended with a 12-sided die (usually the black one) while weapon levels 13 - 20 are defended with the clear 20-sided die. If clover comes into play when a level 13 - 20 weapon attacks, its effective level may drop below 13 yet still be defended by the 20-sided die. Roll-o-Lution also allows the 20-sided die to be used to defend against a weapon that would usually be defended with a 12-sided die.

Probability of Survival[]

Until the Violet Booster Deck adds the 20-sided clear die, all weapons call for rolling a 12-sided die, with 12 equal-probability roll values. Based on that, the probability of surviving any effective weapon level (weapon level minus clover level) can be determined by subtracting the effective weapon level from 12 and then dividing the result by 12. Here are the probabilities of surviving weapon levels when rolling a 12-sided die:

Weapon Level
(effective)
Survival Probability
01 91.67%
02 83.33%
03 75.00%
04 66.67%
05 58.33%
06 50.00%
07 41.67%
08 33.33%
09 25.00%
10 16.67%
11 08.33%
12+ 00.00%

With 20-sided die[]

Once the clear 20-sided die is added, weapon levels 13 - 20 are added and are defended with the new die. The formula for survival probability now changes the 12s to 20s. With Roll-o-Lution or the right level of clover, effective weapon levels 01 - 12 may also be defended using the 20-sided die. Here are the survival probabilities when defending with the 20-sided die:

Weapon Level
(effective)
Survival Probability
01 95.00%
02 90.00%
03 85.00%
04 80.00%
05 75.00%
06 70.00%
07 65.00%
08 60.00%
09 55.00%
10 50.00%
11 45.00%
12 40.00%
13 35.00%
14 30.00%
15 25.00%
16 20.00%
17 15.00%
18 10.00%
19 05.00%
20+ 00.00%

7th Whisk[]

The 7th Whisk is a level 01 weapon that attacks 7 times. Roll-o-Lution can only replace one of its defense rolls with the clear 20-sided die, which ends up making very little difference. It’s probability of survival is 54.39% or 56.36% with Roll-o-Lution, putting it between effective weapon level 05 and 06.

Survival Rankings[]

So what’s easiest to survive? Here’s all the possibilities ordered by survival probability (jump to the bottom to find the most effective killers):

Effective Weapon Level
and Defending Die
Survival Probability
01 vs. D20 Clear 95.00%
01 vs. D12 Black 91.67%
02 vs. D20 Clear 90.00%
03 vs. D20 Clear 85.00%
02 vs. D12 Black 83.33%
04 vs. D20 Clear 80.00%
03 vs. D12 Black 75.00%
05 vs. D20 Clear 75.00%
06 vs. D20 Clear 70.00%
04 vs. D12 Black 66.67%
07 vs. D20 Clear 65.00%
08 vs. D20 Clear 60.00%
05 vs. D12 Black 58.33%
01 × 7 vs. D12 VioletD12 OrangeD12 GreenD12 YellowD12 BlueD20 ClearD12 Red 56.36%
09 vs. D20 Clear 55.00%
01 × 7 vs. D12 VioletD12 OrangeD12 GreenD12 YellowD12 BlueD12 BlackD12 Red 54.39%
06 vs. D12 Black 50.00%
10 vs. D20 Clear 50.00%
11 vs. D20 Clear 45.00%
07 vs. D12 Black 41.67%
12 vs. D20 Clear 40.00%
13 vs. D20 Clear 35.00%
08 vs. D12 Black 33.33%
14 vs. D20 Clear 30.00%
09 vs. D12 Black 25.00%
15 vs. D20 Clear 25.00%
16 vs. D20 Clear 20.00%
10 vs. D12 Black 16.67%
17 vs. D20 Clear 15.00%
18 vs. D20 Clear 10.00%
11 vs. D12 Black 08.33%
19 vs. D20 Clear 05.00%
12+ vs. D12 Black 00.00%
20+ vs. D20 Clear 00.00%
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