B1 Battle Droid

Assembly 1 - {1}{u/b} (You may pay an additional {1}{u/b} any number of times while casting this spell,
when B1 Battle Droid enters the battlefield, for each
time paid, create a 1/1 Blue and Black Droid
Creature Token.)
The Trade Federation manufactured astronomically
large numbers of the original B1 Battle Droid.