Do moves that decrease stats (accuracy, defense, attack, & etc) stack

pokemon-series

I was wondering if I use a move such as Sand-Attack repeatedly on an enemy will it keep on reducing it's accuracy or is there a point where it becomes ineffective to use?

Do moves that decrease accuracy, defense, attack, or a certain stat stack on top of each other?

Bulbapedia Image

Borrowed from Bulbapedia's Wiki page on Sand-Attack.

Best Answer

Yes, stat modifying moves do stack. When the modifier reaches its limit (which does exist - 6 modifiers up or down, or a max of 4 times or 0.25 times the original stat), the message upon trying to modify the stat again will be something along the lines of "Vulpix's attack won't go any lower!".