[quote=@Holy Grail]
[@Moonlit Sonata] Aaaand does this mean that Lorelei can summon another servant as well? If so, i have an idea ([@Kost Alter]) of who to summon among the last two remaining servants. Ya know, unless said servant want to choose a different possible master. XD
[/quote]

Yes. However, obviously doing so currently is impossible for multiple reasons.