True Support Tanks Probably Need Their Own Relic Shield-Type Item

Indepent of the other potential issues of the new supports, I feel like the new and do not really serve the true support tanks well. True support tanks in this context refers to picks like .

It would be great if Riot implemented a 5th support item line, one that has the Relic Shield effect and focuses on pure tank stats. For an example:

Heart of Gold (Tier 1) - 60 HP Infused Plate (Tier 2) - 100 HP, 5 Armor, 5 MR Bastion of Iron (Tier 3) - 250 HP, 25 Armor, 25 MR

At these values, gold efficiency would be comparable to the other support item lines.