Given the premise I posted above, they shouldn't be computed additively as they are 2 different abilities to begin with.

Quote Originally Posted by maotd View Post
I thought about it and... I'm pretty sure it's not how it works. But stop me if I'm wrong with my maths.
If you use Evade + Miss in the same time, there is 4 outcomes:
1/ You dodge and the enemy miss.
2/ You dodge and the enemy don't miss
3/ You don't dodge and the enemy miss
4/ You don't dodge and the enemy don't miss.

Evasion has 50% chance to occurs (probability = 0.5)
Miss has 24% chance to occurs (probability = 0.24)
Now we will name:
- pE the probability of Evasion. pE = 0.5.
- pNE the probability of NO Evasion. pNE = 1 - 0.5 = 0.5
- pM the probability of Miss. pM = 0.24
- pNM the probability of NO Miss. pNM = 1 - 0.24 = 0.76

Now if you look at the outcomes probabilities:
1/ probability of outcome 1 is: pE x pM = 0.5 x 0.24 = 0.12. We have 12% chance to dodge a missed attack.
2/ probability of outcome 2 is: pE x pNM = 0.5 * 0.76 = 0.38. We have 38% chance to dodge a succeded attack.
3/ probability of outcome 3 is: pNE x pM = 0.5 * 0.24 = 0.12. We have 12% chance to not dodge a missed attack.
4/ probability of outcome 4 is: pNE x pNM = 0.5 * 0.76 = 0.12. We have 38% chance to not dodge a succeded attack.

The girl don't take damages on outcomes 1, 2 and 3. That means, you will avoid the attack 12%+38%+12% = 62% of the time. And take the damages 38% of the time.
If you use 4 girls with miss 12% of the time and one evade girl, she will reach the 74%. But you can't go above.
That is correct, maotd. I confirmed it from an example on the Japanese wiki's debuffs section:

Code:
例：回避65%、命中低下20%の場合、攻撃が外れる確率は72%になる
TL: Example: In the case of 65% avoidance rate and a 20% hit reduction (miss) rate, the chance for a failed attack [from the enemy] is 72%.
This is in the context of evasion and miss proccing simultaneously.

Quote Originally Posted by Wutan View Post
Well i think Kurenai has plans to promote Sedum. I am curious to hear his report if shield etc. really makes a huge difference or not.
I have yet to roll the gacha, and Rainbow Rose will be my next RP target.