Shelltron and critical attacks.

[Shurrikhan]

Sheltron is amazing, and is on par with two personal CDs since you can stack 100 gauge for it. It's not static like a cooldown like Camo, you can plan the two charges for two different things.

A second charge, which does not increase uptime or mitigation over time, is of equal value to an entire second ability, which not only provides the same flexibility and short-term coverage as the second charge but also increases uptime and mitigation over time?

Sheltron's tradeoff is that as the expansion goes on it will get strictly better at blocking most damage than other on-demand cooldowns, because block strength will likely get to the point where it mitigates about 25%.

And... how is it going to do that when Block Strength is capped at that of the Ronkan shield (20% mitigation, which also happens to waste Block and Parry chance and is nullified by crits)?