My 6v6 army

1. Magmon Retalliator / mind prism
2. barth beyond / diamond of vlaric
3. aokua / aspect amplifier: might
4 .kraade / staff of wisdom
5. kamangarth / sinister statuette
6. slufurah / prism of vacuity

you got some stuff to work on in here,
most of your creatures got fire and high power which is good for a start but not all of them so this will make some problems while making the attack deck
for example - if you stick with fire attacks aokua and kamangareth won't be able to use most of the attacks and he would be taken out quickly
on the other hand, if you stick with power attacks slufurah won't be able to use most of the attacks as well as (in time) aokua cause he has exhaust so he won't survive long in a long combat

so i sugesst taking out aokua and kamangareth and replace them with craetures who got high power and fire like brimflame or something like that...

I have a attack card that will give fire to the one I am playing with.

but you can't just battle and hope for it to come,
plus if you take them out and replace them with other creatures who already have fire and high power you will be able to use better attacks instead of the one which gives fire

You are right. How about I get aokua and kamangarth out. And put ooloo and ragetrod in. And have ooloo have sinister statuette. And ragetrod to have aspect amplifier: might. So his power attacks will do 10 outperform power.

that would be better
but if you got akkalbi i suggest putting him in instead of slufurah
that way your creatures won't have recklessness