Lancelot (saber)

Basic setup: Saberlot (another ending/hot spring) + Hans/Waver (2030/anything else) + Tamamo (2030/anything else)

To elaborate, the ideal setup for Saberlot is an arts team with Saberlot as DPS with a CE that boosts his damage, ideally arts performance or critical strength or both. For support, best case scenario you'd have one servant to help buff Saberlot's damage output (Hans/Waver) and one to help keep him alive (Tamamo). Ideally, at least one of the supports will have a passive star gen CE, with 2030 being the best case scenario.

İts situational build not gonna work always because survavilabiltiy is so low and downtime (when all buffs gone) is already pretty bad for lancelot with this its even worst

Waver(star gen.CE is best probably) +Caesar(same)+Saberlot(Knight dignity CE) + Mozart at reserve(golden crap fgiure CE)

%180+ crit %46atk+ and np bonus also if you order change mozart he comes in with %44art+(first skill) 20 stars from ce and 50 stars at hes 3rd skill.

Upsides:İnsane crit dmg and potential

Downsides:İf you dont get lancelot command cards its bad
%40 defence down you already had low survavilabiltiy
hes down time is even worst

Downsides are lot but if you are lucky and get lancelot brave chains during buffs he will destroy.

I like Hans + Waver + Saberlot. Hans and Waver give Saberlot double attack buffs, double defense buffs, and double crit damage buffs. Plus Hans throws in some additional stars and some healing.

I run Saberlot (Another Ending) + Tamamo(20/30) + Nero Bride (20/30)
with two of either Hans(Imaginary Element), Mash(Camlann), or Mozart(Camlann), and a support Waver in the back if and when things go tits up