Talk:7M Downloads Campaign (US)/@comment-43603189-20190914152154/@comment-4588822-20190914211806

Given that you have Merlin and two excellent AoE Buster servants, I would consider a ST Buster servant.

Vlad III (EXTRA) would be my personally choice with your lineup. His crit star gen via skill and command cards will help you fuel Merlin's engine. His taunt + defense with heal will help improve survivability and save Merlin's invul for when you really need it. Finally, his NP value is easily overlooked. It includes a one turn pierce invul that you are missing. It also includes bonus damage vs. evil, a common trait.

Rama is the opposite team value compared to Vlad lancer. Rather than fuel to the engine, he consumes the crit stars. Although LAlter is famous for her ability to do one be crit damage turn, when supported by Merlin, Rama can as constantly deal even greater single turn crit damage. His NP also provides the bonus for damage vs. demons. Demons traditionally being riders, this would give you a strong character vs. these common enemies.

No ST Buster servant discussion is complete without including Heracles. With Merlin, it is much easier to keep him alive as a front line servant in the early game. As you progress and get his Bond CE, Heracles becomes arguably the best last servant in nearly any team build. It's an investment that is worth while. And the sooner you start, the better off you are.