As the San Diego Comic Con Katara promo revealed last month, the Ally creature type is back in a big way with Avatar
The only commander that makes no sense to lead the stock list is Rukarumel: this is a really cool and open-ended commander that acts as an Arcane Adaptation in the command zone, but the thing is that Rukarumel herself is the only non-Sliver creature in the entire deck
This is going to be a sought-after version of an already (fairly) sought-after card, and its a great inclusion in my opinion
Mortarion, Daemon Primarch Life loss matters is a difficult thing to manage
8 Blizzard Brawl Blizzard Brawl is one of the best fight spells out there, and all for just one mana
If any of those face-down creatures have double strike or first strike, the ability will trigger once for each player dealt damage in each combat damage step