Is there any guaranteed way to complete the Like Water achievement?

The Like Water Achievement Monk Class specific achievement requires you to dodge 15 attacks in a row.

Dodge is a percentage chance with diminishing returns as I understand it. I boost my Dex quite high when I can and even using Mantra of Evasion, Fists of Thunder, Sixth Sense and Guardian's Path with 2 1-H weapons I still can't seem to get 15 consecutive dodges.

Am I doing something wrong? Does enemy level vs. your level make a difference to dodge chance? Is there any way to increase dodge that I am missing? Is my Dex maybe too low and if so, how high would it need to be to get this achievement? In short, how do I get the Like Water achievement?

Specific details on the minimum setup needed would be much appreciated if relevant. Extra points for math as well.

I managed to receive this achievement via the Serenity skill. There's no combat log, so I can't double-check, I'm afraid. I was in the middle of a pretty large group of enemies and losing health. As I always do, I hit Serenity and kept going. When Serenity wore off, I received the achievement.

I'm not 100% sure, but I didn't see a lot of dodge indicators while Serenity was active. Perhaps it triggers on just not taking damage from attacks?

Here's my guess. Level to 60, get a lot of dex, then go somewhere with a ridiculous number of small monsters early in act I (spider cave?). You can take the hits if they hit you, so try running around spamming evasion.

Also, try standing in those things that breath fire near the end of Act 3 - I find I dodge those a lot, and they might count.

I'm not sure if it's true, but I suspect just based on playing that your dodge chance might increase if you're moving, so try that too.

Serenity helps you by stopping all the attacks that aren't dodged. Got it on my 2nd try with serenity at Iskatu. I spent 15 minutes not using Serenity before that, not getting it.

Handy Step-by-step Guide

1. Level Up (probably at least to 50).
2. Load up on Dexterity gear (make sure there is 0 thorns damage).
   At this point, you should have a chance to dodge of about 50%.
3. Equip Mantra of Evasion (no rune) and Serenity (duration rune) as skills.
4. Fight Iskatu (first battle in Act IV).
5. Pop Mantra of Evasion.
6. Let the Shadow Vermin swarm you.
7. Pop Serenity

This worked for my wife.