Blue Gadget

And I'm certain that your "additive" math still isn't correct. :p

1.3 is the base, with it being 0.3 more than the normal.

So it would be 1 + (0.3 * number of skill boosts).

1 skill boost = 1 + 0.3 = 1.3
2 skill boosts = 1 + 0.6 = 1.6
5 skill boosts = 1 + 1.5 = 2.5
10 skill boosts = 1 + 3.0 = 4

And considering that it could potentially reach such a massive multiplier, I think that's why it has such a high cooldown.

This math is actually correct.

Yay. I need more coffee.

I don't know why all the down votes but I think the effect is additive.

1.3 * 1 = 1.3
1.3 * 2 = 2.6
1.3 * 3 = 3.9

And so on

No matter how you look at it, the effect is huge.

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Actually the wording can be taken another way. 1.3 for many turns. 10 skill boosts = 10 turns of effect.

Methinks your math be off:

(1.3)^1 = 1.3
(1.3)^2 = 1.7
(1.3)^3 = 2.2
(1.3)^4 = 2.9
(1.3)^5 = 3.7
(1.3)^6 = 4.8
(1.3)^7 = 6.3
(1.3)^8 = 8.2
(1.3)^9 = 10.6
(1.3)^10 = 13.8

Geometric progressions are a wonderous thing indeed.