I am reading Cardcaptor Sakura in order to practice my comprehension. I see a lot of pre-masu form verbs followed by し, and I am not sure if they are the "giving reasons" し, the "connecting ideas" し, or something else entirely.
Here are some example sentences that I have had trouble with:
カードに宿{やど}りし魔{ま}力{りょく}をこの鍵{かぎ}に移{うつ}し我{われ}に力{ちから}を!
(in this sentence, I want to know what the し in 宿{やど}りし does)「クロウ」の創{つく}りしカードよ
(in this sentence I want to know what the し in 創{つく}りし does)
Thank you very much for your help