Card name

Walking Ballista

Mana cost

{X}{X}

Mana value

0

Type

Artifact Creature — Construct

Rarity

rare

Set

Fallout (PIP)

Collector number

352

Artist

Evan Shipard

Official rulings

2020-08-07 A casting cost of {X}{X} means that you pay twice X. If you want X to be 3, you pay {6} to cast Walking Ballista.

2020-08-07 If Walking Ballista has been dealt damage or had its toughness reduced by an effect, this limits how many times you'll be able to remove +1/+1 counters from it in a single turn. For example, if it has three +1/+1 counters on it and has been dealt 1 damage this turn, it will be destroyed immediately after you activate the ability a second time and you won't be able to activate it a third time.