What is the ultimate line of defense in the tower defense era?

The last line of defense in the tower defense era is: Scorpio+Thor+Walking+Mage+Blackbeard+Explorer+soothsayer+Joan of Arc. This lineup takes Scorpio+Raytheon as the main output core. These two are very suitable for battery life, and the overall lineup is also very resilient. Most of the characters are relatively difficult to obtain, and players can improve the strength of the lineup.