Even if you don't have Merlin, have at least one Merlin and bonk your way through to success.
Other alternatives for buster supports include: Chen Gong, Chen Gong and Chen Gong
Original video: 焼肉一番 「食卓に、パワーを届けて55年。」篇‐Aタイプ
We have a discord btw:
https://discord.gg/2dyf9sPCar
#fgo #fgoproject