1) Nimbus of Flame is commit effort, so it stays on the entire fight. However the very similar effect Mantle of Quietus does the same thing, but it requires effort for the scene, and seems like it only lasts one round. It has the same activation and effort cost listed as A Confession like Sin from the Scorned lover which seems to only last a single counter attack.
Is it intended that Nimbus of flame be the strongest choice in this group of abilities, lasting multiple rounds and doing its damage every attack that hit? If not could you clarify how these three relate to each other in terms of effort and how long each one lasts.
2)Similarly the bow gift The Seeking Flight states that it effects multiple attacks, but its only an on turn activation, and scene effort. Does it only effect you for one round of attacks or does it last till the end of the fight or until you drop it. I assumed the second, but then another person brought up that he thought it was the former, so I was wondering if we could get a ruling.
I believe that Mantle of Quietus lasts for the round. Check the last paragraph of page 25.
Oh, that's a neat little paragraph!
1) Per the p.25 paragraph, Mantle of Quietus lasts until the end of the scene ("as long as Effort remains committed"), not only a single round.
Confession Like Sin states that you can use it as a response when you are hit and damaged by an attack, so it's a one-time thing - when you are hit by another attack, then it is no longer the attack you used the technique in response to, unlike Mantle of Quietus (which affects "any lesser foe") or Nimbus of Flame ("anyone who attacks you"). Also, Confession is an automatic maximum damage hit, while the others only do 1 point of damage, so it would be too good if it persisted for the entire scene.
2) Again, per p.25, Seeking Flight remains in effect for the entire scene because that's how long the Effort is remains committed.