Yi has solid HP, Q, W and R for evasion, Meditate/LS for sustain and defense items are good on him.
Tryndamere's got 5 seconds of unkillablility, great base HP and sustain, a 4-second long AOE AD debuff and the higher tiers of Defense Masteries are Candyland to him.
Xin Zhao has a knockup, a knockback/resistance buff, a great heal and defense items work nicely on him as well.
Jax has seconds worth of AA immunity that ends as an AoE stun, R gives him bonkers resistances and all he needs for dps is Trinity Force and some CDR.
Fiora has Riposte and her passive.
fix her pls rito. inb4 "R is a defensive maneuver" Fun Fact: When The Move Ends Fiora Is In The Middle Of The Enemy Team And Is Still Fiora