Hive Commander

+1: Choose one, Add one mana of any color to your mana pool. Put a 2/2 snow creature sliver token into play.
0: Hive Commander can become an indestructible human sliver creature,P/T= to loyalty counters on him.
-20: You get an Emblem with "Sliver creatures you control get +1/+1 for each land you control." into play. (Hive Commander can be your commander.)