[HairOfTheDog]

Well, It could affect his ability to resist it yes!

On the other hand, it might also have given him sufficient personal power to take out a "fledgeling" ringbearer.

I don't know enough about the ways of these rings...

[RosieCotton]

I hadn't even thought about Elrond's status as a ringbearer and how that would affect his ability / inability to deal with Isildur...that could be an interesting discussion in and of itself!