>>12337038OP thinks Prankster makes the "vanishing instantly" step of Shadow Force priority, while Lagging Tail causes the the attacking step to usually go last in the round. This would render Giratina invicible for the whole duration of the attack and could only be beat by...
- stalling
- positive priority (shadow sneak, prankster torment, ...)
- negative priority (roar, dragon tail, ...)
- normal types
