Nendoroid Petit Fate/stay night set, adding some missing characters: Archer, Saber Alter, Lancer, Caster and Berserker.
Berserker is really huge (about the size of a normal nendoroid) with articulated joints in thumbs wrists, arms neck and legs. It includes an alternate right hand holding his massive axe-sword.
Archer and Lancer. Archer have extra parts to display him either with a bow (first picture) or with his swords (picture above).
Saber Alter and Caster. Saber Alter includes an extra piece of hair with the visor, and Caster includes a hood to cover her head.