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Expanding force doesn't account for it becoming double target in psychic terrain (as in, when selecting doubles the damage stays as it was single target)
I cannot find a better thread to report this in, but this is a bug related to the teambuilder that happened to me twice now in these days. Basically, both times the pokemon had all the EVs and moves and I'm 100% sure since I literally used them in battle (in the case of the Heatran in the screen...