name: Walking Ballista
originalText: Assaultron Invader enters the battlefield with X +1/+1 counters on it.
  {4}: Put a +1/+1 counter on Assaultron Invader.
  Remove a +1/+1 counter from Assaultron Invader: It deals 1 damage to any target.
printings: 2XM, AER, FIC, J22, MB2, PAER, PIP, PRM, SLD
text: This creature enters with X +1/+1 counters on it.
  {4}: Put a +1/+1 counter on this creature.
  Remove a +1/+1 counter from this creature: It deals 1 damage to any target.
type: Artifact Creature — Construct