Talk:FGO Summer Festival 2018 (US)/@comment-34126391-20180708153349/@comment-30468100-20180708154756

If you mean in terms of the paid gatcha, then Tamamo is a good choice, since you seem to have the start of a good Arts spam team there. Waver is also an obvious choice (he's just OP anyways). Cu is also solid as a good solo attack unit with survivability. Jack is also great for stargen purposes.

Nightingale is a bit of a funny unit, being Berserk/Healer, but she can fit into certain teams, just she's difficult to use right. As a new player, probably not a good start option.

Honestly Artoria is worthless for you, since you have Raikou you already have the best Wave-Clearer and Artoria has little use outside that. Raikou also means all Saber's and near all AoE's on the banner are useless for you (Karna and Tesla are exceptions, both are great hybrid units and have ?-Killer on their NP's).

So overall, Tamamo or Waver can both easily slot into that missing spot in your Arts lineup.