ADC/APC senna?
I just noticed something. Senna gets stacks from hitting enemies and minions dying. She gets more if she doesn't kill the minion.
Wouldn't senna be a good APC/ADC? Its essentially caitlyn with a heal and lets be honest, we all miss CS. So missing CS would potentially help you since it means more stacks.
Plus having a support with you means possible Ardent censer which just makes you stronger and attack faster.