Guild Wars 2

What’s the cap, if any, for the active? (transfer boons to allies)

No cap as far as I could tell. You’ll transfer all your boons to allies at the same duration they are when signet is activated.

There is no cap at all. I’ve transferred every boon + 25 stacks of might onto allies. Of course getting all that means that I’m usually just doubling the duration of everything except the might stacks.

It has some wonderful uses around the Underground Fractal and the Underwater Fractal in PvE.

I can be powerful in WvW, stealing all boons off a Guardian, then giving them to the people around you. I guess the same applies in sPvP, but it’s rare you got enough friendly targets nearby to make it really come into its own.

combos great with runes of altruism, keeps aoe frenzy up about half the time, and between 3-6 stacks of might always. It’s also trivial to get more buffs by using staff and sword’focus. see the chaos maestro build for more info.