There are card combinations that I have still not found any strategy to win against. One of them is SCARRED LLAMA MAGE combined with KRON THE UNDYING as seen in the battle above.
My Life Splinter army was well equipped for that battle with 2 healers in the back row and CRYSTAL WEREWOLF in the front with the silence buff. Unfortunately, the LLAMA cleansing all buffs from the front row monster, with the last stand ability Kron is maxed to 4 magic attacks, is healing himself with +6, and has 18 life or something. My army could balance the 4 magic attacks with the combined healing abilities from DIVINE HEALER and VENARI CRYSTALSMITH (a really good monster from the new reward cards), but as my attacks were too weak everything was in vain. If I had invested the 4 manna that I took for TRUTHSPEAKER and CREEPING OOZE, I might have won - but it is still one of the toughest enemy combinations you can meet on the battlefield. If you have a good lineup that can face these two please tell me in the comment section.