I use full phosphorescent set with a golden cloak. Giving me 10ap 5mp. I have no crit from build but instead focused on relying on crit from gear and utilizing backstab damage from gear and dumping points in STR.
I assume you will also focus on a monobuild and i wonder what your thoughts are on what spells to level.
Your item build looks great and I actually had thoughts of using it as we'll, the only problem is if you don't crit with 3 cards you might as well use all in and battle for this item build.
For me the crit isn't consistent enough for 3 cards and would recommend all in. You'll only be doing an extra 200 damage or so with 3 cards crit but only at around 40% chance
Sorry for the very late reply
3-cards is one of those abilities that without crits and it's wakfu point cost, the spell would be too mediocre.
Your gear is something similar to what I'm currently using. I use full sylargh/and fill in the rest with phospho. I manage to have around 50 crits base, without counting WS. The only upgrade to that is Dragon Pig, but until then, that's what I use. (and i don't even look at Magmog set for an earth Eca, it's kind-of meh.)
Normally, 50 crits is where I tend to aim at to have a consistent enough crit hits with all my abilities. Anything above that, could be sacrificed for other stats, such as str, hp, backstab, chdmg, etc. Since you're getting additional crits from WS.
Depending on crits from gear is sometimes not enough crits to obtain the best dmg output (I'm not saying you aren't) Just statting 10 crits would suffice
All-in/Battle/HoT are other abilities that relies on crits because of their secondary effects, and without consistency of crits your dmg output will be low.
The trick to an earth ecaflip is in this order CH>Backstab>Chdmg>Strength>HP>Res
Its personal preference after that.