Talk:Tokugawa Kaiten Meikyū - Ōoku/@comment-28605611-20190322231330/@comment-31392049-20190323045750

I doubt they introduce any sup able to buff two card types at a level it would cause a competition with Merlin and others. Th reason is that it would require a lot more balancing, otherwise either a color-dedicated sup or that new sup would simply fall out. Meanwhile, in their current situation, the developers simply balance new servants around the core supports. It might seem cheap, but at least this provides the game with some kind of balance.

In the same time, introducing a new +50% buster buff could end up in a 150% by two Merlins and that new sup. I don't believe they want anything like that.

A servant who buffs team's card performance by NP could work. Some kind of 15% buff for all cards +5% per overcharge, and enough gain for this to be spammable.