Which Servant to Lvl Up First.

For ST saber go for lancelot otherwise pick alter for AOE. for zerker ... Lacelot for AOE NP that will drop lagre amount of star

Lacezercker for farming, but do put a starting 50% CE on him and use a frineds Waver, his NP gain is horrible. But his AOE NP is strong as hell, and has no demerits like Tamacat and Fran.

Sabercelot is a god of arts crit, his crits are extremely good, thanks to skill 3, and 2 combined. Ofc Liz NP will hit harder (NP5+mana burst), but the usual normal dmg of Lancelot is amazing, surpassing his own NP when you put some crit up CE on him o add to his own skill crit up (from Rins Pedant, Cover Fire, Hot Spring Under the Mom, Atumbra Gem Magecraft, and specially, Another Ending).

Salter for farming/wave clearing Lancer Nodes, her dmg multiplier is the truly the best among AOE NPs (sans Arash, ofc), even on NP1 she will demolish everything with Mana Bust active.

So, start with Lancelot(s), later on do invest on Salter.

Saber: Saberlot

ST damage and consistent stargen. Extremely easy to use on any team.

On a different note, a lot of higher rarity Sabers can outdamage him on ideal conditions and Munemori is overall a better pick as an Arts servant.

Berserker: Lancelot

Farming monster with strong ST potential. He's basically budget Raikou, a versatile unit and extremely future proof since he only gets better (Skadi outright breaks him). ¨

Frankenstein is also a good pick, she stuns herself but her NP damage is too high.