Is it possible to get daily card openings by inviting friends to a hamster combat combo?

[SenseiiPikaa]

Friends, I recently started playing Hamster Kombat. Instead of the daily combo, do we get cards by inviting friends? In other words, if we invite 3 friends and get a card, does that count as one of the cards we need for the daily combo? Also, our hourly income has increased, and we have extra coins. When the game ends and we cash out after finishing the hamsters, does the number of friends we invite affect it? Can we still cash out without inviting any friends?