Board Thread:General Discussion/@comment-28164618-20160419132550/@comment-30937535-20180605130650

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.