Thanks @rogerlabanane - I'm aware of the rental option but haven't used it yet. So far, I've only met opponents with level 1 summoners, even now in Bronze 1 and am doing okay with my water and fire sets and the experience garnered on my @hirohurl account. I will certainly start renting cards in due course.
RE: Chiron's 1st Week: Progressing in Splinterlands and Earning BTC on Hive!