[W] Lend me steam games [H] One card and the game you sent me

It's not possible to idle steam gifts, you have to have it on your library and then send a steam request as you run the game or use idler to count hours in order to drop cards.

As for your minion master, you received the free key and idled those cards, minion masters offered a steam gift to those who had their beta key so that explains why you have minion master cards, just like i have them . Please don't try to fool people around here.