Does the Ballista's poison effect stack? Marek November 13, 2017 21:51 Updated Follow Yes, the Ballista Tower's poison effect can hit a dragon multiple times and effectively cause massive damage. Related articles How does the "Breed 20 Eggs For Guaranteed Progress" feature work? Atlas Glossary of Common Terms How do we end a war earlier than scheduled? Live Event Issues Live Atlas Issues Comments 0 comments Article is closed for comments.