I would like to congratulate all those who have been staunchly supporting this concept so far; it's the most popular one on MU, and I believe it is so for a reason. I'm going to add a couple of last-minute changes to the proposal. The general structure remains the same, obviously, except for a few secondary aspects.
Namely, the normal stance is named after Narya and it's the sole option showing the actual Ring of Fire, whereas all three stances (theoretically) refer to said Ring. Moreover, I've grown quite dubious about my graphical choice at the time; two of the icons present very situational images, therefore not so apt for a universal, deep-affecting feature. Plus, I feel we should focus on Narya's role more, by stressing its own defined influence by means of a single stance. It's overall much clearer, immediate and direct. That's why I've recovered some bits of BFME's bygone content, which nonetheless are of great help. Sometimes, it happens that old is gold and cartoonish art serves exactly the right scope. For instance, can you believe that Gandalf's bubble-shield had its own vanilla icon?
GANDALF'S STANCES
Normal Stance: Narya - The Ring of Fire ensures a proper balance between spell effectiveness and the bubble-shield's frequency.
Narya also preserves its bearer from toil and wear, providing higher resistance against fire, poison, ice and magic.
Offensive Stance: Might of the Istar - Gandalf uses his potent magic to fight evil and tyranny. His spell damage is amplified by 50% and his attack by 15%.
On the other hand, his defence is decreased by 25% and his magical bubble-shield is completely disabled, leaving him vulnerable against enemy heroes and monsters.
Defensive Stance: Wizard's Shield - Gandalf conveys all his power to his bubble-shield, to resist any fell menace. His defence is increased by 25% and his bubble-shield's frequency will be a lot higher, granting him protection against units, monsters and heroes.
Conversely, the effort drains part of Gandalf's vigour and his spell damage is then decreased by 50%.
As you may see, I've re-worded everything in order to further specialise on Narya, via his normal stance. And it doesn't end here, because the Ring will even protect its bearer from the action of all those factors we have identified as
decay, thus easing the wizard's burden in times of direst need. I think this last addition finally connects Narya with its two fellow-Rings, since the Three will each explore the mentioned preservation theme, albeit in different facets.