You can purchase bomb's from the store ans use them (.e.g. emp bomb).
The idea is that you can only use a bomb once then it's gone and only one bomb can be used per battle to make it fair.

Bomb Idea's List. (Price expected to be big)
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(optonal idea)*EMP Bomb - Lower energy and increase heat or miss a turn.

*Random Bomb - Chooses random damage and its area (.e.g. 27 Heat)
*Super Bomb - Mega damage.
*Electro Bomb - Electrical damage.
*Detonator - Explosive Damage.
*Heat bomb - Increases Heat to 100%
*Energy bomb - Decreases energy to about 5

(couldn't think of names for some of the bombs, sorry about that)
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The bombs don't have to be like this but it can be around the same.

One thing that comes to mind with this is it could ensure victory for the player to move first even more so than its current state.