Mana in E&P - Sheet and Descriptions

[PlayForFun]

It seems to be exactly 11:

@Epigenetic and me did some testing in Beta:

I narrowed down to 10.8 and 11 range.
@Epigenetic has narrowed it down to 10.98 and 11

See the details here:

@Epigenetic

Level 5 mana, three tiles at +1, +2, +6 did not charge
Total = 3*(1.07+0.05)+3*(1.07+0.10)+3*(1.07+0.30) = 10.98 tiles

@PlayForFun

So far I could narrow down the Slayer mana speed to 10.8 and 11 tile range.
(11 tiles with 0 mana generation increase was enough to charge a Slayer hero.
But 6 tiles with 0 mana generation increase + 4 tiles with 20% mana generation increase was not enough to charge a Slayer hero)