That's an intriguing thought... the problem is moves like you mentioned Heavy Slam are probably only able to be given to pokemon that already weigh a lot. I would love to see status effects on weaker moves... i think... With the limited number of moves our pokemon are allowed to have I think this will be hard to implement and we won't see anything like this for a long long time.
GamePress
Possible change in Heavy Slam?
Hi all. Now that we now Niantic is preparing a big change involving combats and gyms, do you think is possible to add some additional effects on some attacks like in other pokemon games?
For example Heavy Slam receives a damage multiplier based in weight difference between the mons.
We already have hidden power as a different attack which can have a random type.
Thoughts?