Thondor
I run Compose Dream Games RPG Marketplace
Would I have to buy them for that? I don't have all that much money atm...
Anway, what would summoning be based on? Would it just be magic or something else?
Have you read the Amber novels? If not I suggest that at the least you try to get Nine Princes in Amber from your library if possible. It's a short read only about 160pages if I recall correctly, and quite frankly excellent. It will give you some basic ideas of the premises of what we are playing here. (though it won't give you any ideas of the cosmic power struggle, that occur in the later books.)
Depends on what you mean by summoning. On the one hand it would be the Logurus (Courts of Chaos's version of the pattern) costs 45points. With it you can 'summon' a sword from shadow, or a cup of coffee. Or pull yourself towards the desired object . . . On the other hand it could be conjuration (20 points) but to be honest I'm kinda confused on the rules for conjuration.
Generally you want Pattern (50points) or Logurus(45) in order to manipulate shadow -- the main premise of the Amber universe. Its possible to manipulate shadow using Advanced Shapeshifting (65 points) to move through shadow, or to follow someone else through shadow, or use a personal artifact to follow 'trails' through shadow . . .
Most go with Pattern or Logurus though.
(I'll note here that 'most' games start with 100 points at character creation)