Bear Umbra and Octopus Umbra are powerful auras that give you the ability to untap all lands when you attack or turn your creature into a giant base 8/8
Your best bet against aggro is going to be using Madam Mim an Snake to bounce and attack and clear your opponents board
As mechanics go, we got it in early in the process and it made it cleanly all the way through development (with the few tweaks) to print
The main one is on your commander, Winter, Cynical Opportunist
You get a really viable team that attacks even safer when it has Menace, and if you run haymaker after haymaker, you get to increase the chance Shanid stays in play to keep the cards coming
[16] Estimated value: $1,500 - $1,900 (Alpha) The Shivan Dragon is a red card with the power of flight and solid attack and defense values, making it a strong choice to attack opponents