This feels unfocused, but the basic idea is that Unicorn/Pegasus/Purist triumvirate can keep some damage down long enough to get the Enclave Cryptologist to help accelerate down to Amoeboid Changelings and Undead Slayers. With those last two, only protection or shroud can keep a creature from being nuked. Also, the Amoeboid Changeling can do things like take away a creature type from, say, an Elf as it is targeted by an Elf-specific ability. The level up cards are there to support everything else in general combat. The curve is a kind 11/17/9/3 with a 2.10 average