shell for safety blue stone clear chalice with a muti pot for that initial regen after first or second trade
can replace breastplate for nemean if adcs are giving to much trouble can also replace genji's for freya's tears i personally value cooldown for the late game ults and spamming 2 for poke
more overall tankiness and with dwarven you can switch it over to magical def meaning you get close to same value only problem is that you lose cooldown
when adc's are doing to much damage to you this is the only answer you have in response