Any easy to use templates or websites where I can just do some customs? I have zero skills.

https://www.reddit.com/r/XWingTMG/comments/9brn5c/custom_card_templates/

To make foil cards you'll need some old mtg foil cards, acetone, and a way to print onto a transparent transfer/sticker sheet. Google should bring up plenty of guides on using old mtg foils to make custom cards