Hello again Sir. Zekrom. Just posting to say that your Eevee's Night Camo attack will still be rejected for sure, for the following reasons:
1) The Damage and Energy Costs are too high. Pokemon have 60 Points of health and 90 Points of energy. The attack you have posted will wipe out all your energy for one, and it will deal too much damage to be fair. Honestly, anything doing over 15 points of damage or using over 15 points of energy will be rejected unless there is some sort of drawback.
2) The numbers are too specific anyway. PASBL uses a set of terms for damage/energy of attacks, and using the actual numbers are usually frowned upon. This is PASBL, not mAthSBL.
3) Like ShuckTsubo said earlier, a bio will be needed. How did Eevee learn Night Camo? Why is it very hard for it to do? Your description of the attack, and of the circumstances for it to learn said attack, are lacking in creativity. Give it a bio with flare, an attack description that gives the ref an Idea for what Eevee has to do! Also, nothing depends on experience, so increasing power depending on experience will not fly.
And 4) Night Camo to me seems like a clone of Faint Attack. Why not just give Eevee Faint Attack?
Sorry if this sound harsh, but sig writing isn't as easy as it sounds. You have to convince Mercutio/Jerichi to approve it using nothing but the bio and the attack description, and right now I doubt they'd even bother looking before rejecting Night Camo. If I can think of anything else is an issue, I'll let you know.
Read the first post of the Sig Submissions thread, it'll give you some guidelines to follow, and read some of the other sigs that have already been accepted, to give you a basic idea of what's needed.