A couple mechanics questions (BRDs/general.)

[Eissels]

Hiyo! So, to get right to the point, I have just a few simple questions that I don't know and was hoping the more knowledgeable DPS could fill me in on.

How are DoTs calculated? Is it static, or dynamic? Like, if I throw up all of my CDs and DoT, will it snapshot the stats of that second, or will it continually update as I gain/lose buffs?

If dots are static, do they roll? Meaning if I throw up both dots under a slew of buffs, and I reapply them before the duration wears out, will it "roll" the initial status or reapply it based on my current stats?

How many cooldowns can be squeezed into a GCD? I've heard both 2, and 1, but using 2 seems to be pushing it with the animation lock on some of them (like internal release.)

What takes priority to fill a GCD? Bloodletter proc, or popping a DPS cooldown?

What damage type are venomous bite/windbite counted as? Are they buffed by foe req, or DRGN piercing debuff, or nothing at all?

Also, since this is how it works at low level, I figure I'd ask if it continued into high level - does ballad restore enough MP to keep 100% uptime on it like it does when you first get it?