Ganking others a lot is boring. Getting ganked a lot is boring. But it's over-temptingly useful, especially in Dominion. Ubi should make it less rewarding. So people will do it less.

There are many ways to do that. I don't care how. Just change it.

For instance, just make 1vX take longer. Then while your opponents waste their time ganking 1 guy, your teammates are taking zones. Or coming to counter-gank.

This could be accomplished perhaps by making Revenge give you better, longer-lasting defense.

Or make ganking more dangerous...make friendly-fire damage more damaging.

Or make 1vX easier on the defender (though I think it should remain hard).

Lots of ways to do that. I don't care how. For instance, what if 1vX Revenge knocked over everyone near you? Or just stunned the extra gankers so your zone attack could hit everyone? What if it altered your zone attack to do 360 degree strikes? What if it made you immune to GBs from people you're not locked-onto? Or their external GB only served to interrupt your attacks, but wouldn't leave you defenseless to a guaranteed hit? There's a lot of things they could experiment with. Some changes could also be tested to non-revenge 1vX too...like how external GBs are treated.