Right now the only one I can think of is Janna's, I don't know if there's more. It's a really interesting mechanic and It feels wasted rn on Janna because it's not really a import part of why people pick her. More of her kit should be focused on protecting structures or there should be a champion that's niche is protecting towers. Rn she just feels like her niche is disengage, which is alright but it's kind of bland.
ModWuks3 votesBard Ultimate is probably the only other one that can directly interact with turrets
TheOmegaBear091 votesTristana E and Ziggs W also directly interact with turrets. Azir W used to, but that's like 3 years ago. However, you're correct in that Bard ult is the only other one that can directly interact with them on a defensive level. Unless I'm just completely forgetting somebody....
Wacky92 votesPlenty of abilities interact negatively with towers (Rammus ult, any ability the buffs a basic attack, etc), but few interact positively. I can only think of Janna and Bard.
