Originally Posted by
Grofu
So, in that scenario, the math (if I did it right) works out slightly in Mana Tea's favor, like this (assuming no Demonic Phylactery):
Using TFT only on two free Vivifies, it's 7200 mana x 2 = 14,400 savings every 30 seconds, or 43,200/1.5min.
With Mana Tea, you can cast Vivify maybe 8 times during the ten seconds of MT (my current haste produces a 1.28sec casting time, or 7.8 casts, but let's assume some folks have better haste than me). 7200x8=57,600/2=28,800. But you also get 3 free taps of Vivify from unfocused TFT, so that's another savings of 7200x3=21,600. That's a total savings of 50,400.
That's not too far off, given that Mana Tea requires a manual click, so IMO Focused Thunder wins here, especially if you take into consideration (as you point out) that most people hold 1.5-minute CDs rather than casting them on cooldown. If you hold Mana Tea for emergencies then it's (presumably) always a net loss against FT.
(Edit: Of course if you use your TFTs for other things instead of Vivify, then all bets are off, and there's certainly an argument to be made about flexibility with mana tea.)
(Someone check my math, please. I'm usually an idiot in one way or another.)
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On a separate note, have you all noticed that you can cast Essence Font while floating with Zen Flight? Some kind of bug, I guess. Can't imagine that would have much applicability in raids, but it might be useful for open world PVP.