Fabricate

Fabricate is a keyword ability introduced in Kaladesh. It was first previewed on the card Propeller Pioneer at PAX West 2016.

When a creature with Fabricate enters the battlefield you may put a number of +1/+1 counters on the creature, or create a number of 1/1 colorless Servo artifact creature tokens. The number after fabricate tells you how many +1/+1 counters or Servos you get.

The fabricate ability triggers when the creature enters the battlefield, but you don't choose counters or tokens until that ability resolves. That means your opponent will have an opportunity to respond to the ability before you make that choice and before the +1/+1 counters or Servo tokens exist. If the creature with fabricate isn't on the battlefield as the fabricate ability resolves, you must choose to create the Servo tokens.