I can't get past the Caitlyn boss fight... every time I restart I re-spawn into death...
I brought an Ahri along. At the start of the fight, walk in front of her, tank the shot (will put you pretty low), then immediately drop you armor, swap to Ahri, and grab it. If you unlocked Thornmail in the shop from Taric's campaign, that's highly recommended. Then just rush her. She has shockingly low HP, just that first blast will drop you if you try walking all the way up to her as Malph.