Wave 3: Siege I
Yes. For example, if it has orange battle icons, those will add to the character’s attack total. If it has a green battle icon, it can be swapped with a card in your hand after the battle.
Heroic Team-Up can only increase the attack of an untapped Autobot. If Alpha Trion or OPBL attacked, it would be tapped by this point.
“Yes. That’s a really good idea.” - Ken Nagle, Transformers TCG Design Lead.
Autobots have a red frame and the Autobot insignia in the lower right corner. Decepticons have a purple frame and the Decepticon insignia in the lower right corner. A few characters have "Autobot" or "Decepticon" in their names, although these aren’t the only Autobots and Decepticons.