Arxon, dark dragon lord

infect, trample and flying
Pay:{1}{b}{g} or Arxon, dark dragon lord gets shuffled into your deck.
{x}{x}Give Arxon, dark dragon lord X +1/+1 counters.
If Treasure of Arxon and Arxons legion is on the battlefield Arxon, dark dragon lord gets 2 +1/+1 counters