- Grapploct's "Octolock" attack says its effect can't be applied more than once. What does that mean?
- It means that if the Defending Pokemon is already under the effect of Octolock you cannot do it again for an additional {C}{C} cost. In other words, it does not stack.
Source:
Sword & Shield FAQ (2020-01-24), TPCi Rules Team (2020-02-06)
Relevant cards
Note: All applicable cards may not be listed below.
SWSH1_113