Mikan,
I think I get where you coming from. Why I thought ninja can do the job is because of the current rating I in. I believe when you hit that high rating, everything become ridiculous, cause mostly should have good equipments with optimised stats. So my guess is, Ronan with such equipment and runes will become overwhelmed and swapping or silence will render useless due to the high stats they have.
Even though I cant see it now, because I in a much lower rating, but I feel that might be the situation now. Because their tanky or front liner can easily absorb the damage of their backliner. While their backliner just wait for the time to ripe to unleash.
I'll be honest, Ninja as counter is actually not a bad idea, I always had been tempted to make a Ninja Kira. The problem though is there are other factors to consider. It's not like you are only fighting 2 Ronans with a bunch of dummies in front of them that doesn't do anything.
Hmm, it depends on the AI, because when we fighting, it is against AI, and not human. So AI can be quite stupid.
Example, for me to build a team with 2 ronan, i will put a 2 ronan behind. infront with lucille, then 2 tanker infront. This will provide enough def up for ronan at the backline because of lucille and the def ronan. (lucille also become tougher because of ronan).
AI team with swapper always swap the tile, meaning this formation will guarentte win, unless your ronan is 1 hit KO (since ronan now become the sole Damage provider)
So let say u meet my team and you are a swapper team build. I will not swap the mid tile, i will swap with the backline ronan. First round will finish without any much damage, but ninja already swap in.
So there is 2 situation now, 1 is, 2nd round my ninja bounce on ronan and lucille and killed the ronan that is at the back row. 2 is, i didnt manage to kill anyone at the back row. Base on AI, first ronan will cast the push back skill, then i will be able to cast my faye shield, then this will go on.
So i feel that, because of AI, they can become quite stupid. but luck play a part here. Because i have seen Ronan AI attack and 3 missile hit my tanker, almost killing it. Crazy.