Sorry for posting too much strategy at onces, but ideas are poping up.
Eevees.
Neo + promo = energy evolution + chain evolution = 2 evolved eevee.
Neo + 3 promo eevee ( I don't recommand 3 promo eevee. you need the neo one to start this combo ) = all 4 evolved eevee!
good in any deck with eevee, especially in eeveetron
This article is written by sam
siliconz@ihug.co.nz