Board Thread:General Discussion/@comment-28164618-20160419132550/@comment-33921048-20180605161143

Xela126 wrote: I wouldn't rank Artoria as a Grand Servant, there are a lot of servants who have beaten her in skill. It's only her Dragon Core and overpowered NP's that allow her to keep up.

My Grand candidates (with established servants) would be:

Altera/Attila for Saber.

Scathach for Lancer (but with her mastering many weapons she could probably qualify for other classes).

Gilgamesh for Archer.

Ozymandias for Rider.

KH for Assassin (established).

Merlin and Solomon for Caster (established).

Heracles for Berserker.

Nevertheless, there are many characters that could probably also qualify, like  Alcides, Karna, Arjuna, Enkidu, prime Beowulf, Achilles, Romulus, Morgan, ...

As was said before, we don't know the criterias that have to be filled to be summonable as a Grand by the Counter Force. Artoria might have been beaten but she can still qualify, as there can be multiple servants who qualify for one Grand Class while only one can actually be chosen. When a servant becomes Grand, they are raised to their absolute heightened state.

For Caster they need to be birn with clairvoyance and need to be the top in their field. Though I can only guess, for Saber I would say they need to have at least mastered one type of art style and wielded some kind of legendary weapon.