Offering 3 Legendary Birds

[Johto Trainer]

Ok, so I'm offering all 3 of the legendary birds, and yes, they're legit. I got them from platinum, and I'm pretty sure I used some of them in battle. I just need some pokemon in return....

Solrock
Tauros
Clampearl(Sp?)

So if you can offer me one of those pokemon, then you get one of my legendary birds of your choice (Moltres, Articuno, Zapdos).

Offer please!

 

[Kirin]

I'll give you clamperl and tauros for Articuno and Zapdos?

 

[pikmin]

I'll breed a solrock for moltres if you throw in a good item

 

[Johto Trainer]

I'll give you clamperl and tauros for Articuno and Zapdos?

Oh good! Your offer is accepted. I'll VM you when I can trade.

I'll breed a solrock for moltres if you throw in a good item

What would you consider a good item?