The problem with Cinderhulk was it giving a percent of BONUS HP instead of TOTAL and its damage
Why? Because Sejuani above all was intended to have so much damage because she is the squishiest tank in the game. If Cinderhulk had taken into account the base stats of champions (obviously reducing from 15% to like 8%) and had lower damage on its own we wouldn't have had tanky monsters oneshotting ADCs. Sejuani should oneshot the ADC, but not be able to tank 3 people while doing so. Malphite should be able to tank 3 people while killing the ADC, but should need at least 10 seconds or more to do it. Garen should be able to comboshot an ADC and then tank for 10 seconds, but not to get to the ADC on his own (unless brush).
Now obviously everyone can build as they please, but bruiser Malph should be significantly more tanky and less damaging than bruiser Sejuani, and same for CInderhulk monster Malph compared to Cinderhulk monster Sej.
Bring back the tank meta, PLEASE, but a meta of true tanks.