Droid Battalion

Squad {3} (As an additional cost to cast this spell,
you may pay {3} any number of times. When this creature enters the battlefield, create that many
tokens that are copies of it.)
As Droid Battalion enters the battlefield, Amass
Droids 1. (To amass Droids 1, put a +1/+1
counter on an Army you control. It's also a
Droid. If you don't control an Army, create a
0/0 blue and red Droid Army artifact creature
token first.)