Bardon, Alien Commander

When you cast Bardon, Alien Commander, you may pay {x} more. If you do Bardon, Alien Commander gets +2+1. Then create X 3/2 Alien Warrior tokens.
{p/g}{p/g}{t} Create X 3/2 alien where X is the number of aliens on all battlefields.
It is said that the Alien commanders are able to make their army double simply by sleeping for an entire day.