I don't know with a wits end and sorc boots you deal A LOT of damage while going full tank or maybe a sunfire cap added on for tankiness and more damage - a giant dragon flying at your back line is a very threatening thing and something you cannot ignore otherwise you die-- Shyvana is weird because all she has is a slight push when she ults but has really good initiation despite having no cc
on a peel aspect - you can build randuins, frozen mallet, or rylais, on top of % max health and sustain damage you can really help kill the tank line quickly and then move on to the enemy backline