I delegated a few duplicate cards to get you over 5K mark. It's fine. Renting out/delegating cards does not affect your SPS collection score. It only affects your battle collection score. Almost all the cards I delegated to you I wasn't renting out anyway. I'm not curently playing because most of my collection is rented out. Once Chaos Legion cards are released on the market I think card prices may go down and more people will be able to afford owning cards. At this point my rental income may go significantly down and it might make sense for me to begin playing again.
The magic summoner for Dragon splinter was a great choice. It allows you to use the expensive magic cards you have invested in from other splinters. I always use the magic summoner when I use the Dragon splinter even though it has a slightly higher than average mana cost for a summoner.