Animation Module
Artifact
Whenever one or more +1/+1 counters are put on a permanent you control, you may pay . If you do, create a 1/1 colorless Servo artifact creature token.
, 
: Choose a counter on target permanent or player. Give that permanent or player another counter of that kind.
Design leads to progress.
Illustrated by
Kaladesh Promos#194sRareEnglishLegality
Rulings
If +1/+1 counters are placed on more than one permanent you control at the same time, Animation Module’s first ability triggers once for each of those permanents.
Abilities that trigger when counters are placed on a permanent trigger when a permanent enters the battlefield with counters and when a player puts counters on a permanent.
You can pay only once each time Animation Module’s first ability resolves. You can’t pay more to create extra Servo tokens.