Graves tankier then tanks?

Is riot going to do anything about graves? :\ Hes a adc that gets a defensive steroid....His champion design is the problem That 30 armor/mr may not seem like much but considering that can be a 15% physical/magic damage reduction its pretty big.I have saw graves go into battle full offensive items (With deaths dance) And successfully survive a assassin and a brusier and come out with full hp sometimes killing them both...Warlods + deaths dance + right click =25% of his health back + his e passive allows him to be a amazing tank that has GREAT damage output.The main reason he is so tanky is because of his ability to get life back so easily during a fight. What are your guys opinion on graves? I haven't saw any changes being made for him and i feel like they are much needed to be honest. But it seems as riot doesn't think so.