Finally got this done, simple ref design of Mega Lati-Ingo and Mega Lati-Emmet mega forms. They only use their mega forms to fight serious threats, they don’t use them in normal battles.

Originally I was going to mix elements of Reshiram and Zekrom into their mega designs, as a nod to possible connects they have with the two dragons, and also make them more distinct from each other but after looking at the Mega Latios designs again. I thought no actually the mega form of Latios works fine for the subway bosses they even have sideburns similar to them, so don’t change much and also make them both grey when they mega evo.