STAT DOWN SIDE EFFECT
Moves included: Acid, BubbleBeam, Aurora Beam, Psychic, Constrict, Bubble
- Doesn't occur against Substitute or invulnerability (Fly/Dig) status. Otherwise 85/256 chance to occur (~33.2%).
- Decrement corresponding stat level by -1, unless it's already -6.
- For Attack, Defense, Special, and Speed, recalculate the Pokemon's current stat (only the stat affected) according to the new stat level. Cap at 999, minimum is 1.
- Bug: When the stat gets recalculated, ignore any attack drop from burn and any speed drop from paralysis. If the target is burned or paralyzed, apply the corresponding stat penalties to him (again). This is a bug, see explanation above, under Stat Up Effect 1.