Swell the Host is a 100 card Commander preconstructed deck, featured in Commander 2015. It is bicolor blue/green. The primary theme of the deck is +1/+1 counters, and the secondary theme is snakes. The primary new commander is Ezuri, Claw of Progress, the secondary new commander is Kaseto, Orochi Archmage, and the reprint commander is Prime Speaker Zegana.