Wanna build a Mega Heracross deck for a friend

My friend really like Heracross. I’ve tried looking some up but they all have out of regulation cards like Iono and Nestball. I messed around with it in TCGLive and found that Non-mega meganium helps with energy boost and hero’s cape to boost hp along with some of the special grass energy. TBH testing has not been great cause I keep running into alakazam… any ideas for some helpful cards?