How to increase battle energy?!?

Yesterday i got a 5* allies general, i was so happy and i put him straight into underworld as lvl 1 (bad idea), but his ability which is amazing imo is 7 energy and i cant use it?!? Do i need a certain talisman to upgrade my battle energy? I tried using ones that increase speciAl but thats for fury, is it the energy augment? If that is it then where can i find those talismen? I have 1 energy augment talisman but it doesnt display how many i need to get the augment on

Those go up with your Player Level.

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Now Eddie is going to do some serious battle.

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Last Battle

Attachment 408 Oh oh not again

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Damn it i feel so stupid! I thought it was some magical talisman! Thanks bob

You are welcome.