Talk:Morellonomicon/@comment-99.122.40.53-20130315040548/@comment-4881935-20130315041908

here's two general rule of thumbs you can go by:
 * Debuffs don't stack unless they actually state that they stack.
 * When two percentage stacks with one another, they stack multiplicatively, not additionally.

So to answer your question, no, they do not stack.