Pokemon Pearl help!!!?

Question

ok so im going to traing my eevees and go take on the e4 with them so which ones should i use

and by the way i already am traing on thats in the 40's thats going to be an umbreon

Answer 1

??? Espeon, umbreon, vaporeon, flareon, jolteon, glaceon?

All your pokemon have to be at least lvl. 60 to stand a chance with massive healing items.