Military Ground Base

At the beginning of your upkeep, add 1 Action
to this Structure.
{1}{r}; 1 Action: Create a 4/2 Soldier creature
token.
{3}{r}; 2 Actions: Create a 4/4 M1 Abrams
creature token with Trample.
{4}{r}{r}; 2 Actions: Create a 7/4 M142 HIMARS
creature token with First Strike.