Steadfast Amulet

[Shin Okada]

Steadfast Amulet says,

Power (Daily): Immediate Interrupt. Use this power when you are dazed or stunned by an attack. Make a saving throw against the condition. On a failure, you don’t expend the use of this power and no daily use of a magic item power occurs.

It only says "when you are dazed or stunned by an attack" and does not specify that which must be the one save can end.

Also, it says "condition", not effect.

So my take on this item is,

1) It can remove "dazed" or "stunned" condition caused by an attack, even if that usually has a fixed duration such as "until end of xxx's next turn".

2) And that saving throw only removes "dazed" or "Stunned" condition and not other part of the effects. For example, if an attack make my PC Stunned and Weakened (Save both ends), I can only make a saving throw against that Stunned condition and not against the entire effect. And on success, only the stunned condition is removed.

Am I understanding it correctly?

 

[Greatwyrm]

I would say both of those are reasonable interpretations.