Originally Posted by
rabbimojo
Let's say these hits are exactly 20k each, and land every 2 seconds like clockwork.
...
Now, technically to survive this, you need 20001 hp. But, this assumes you have perfect/infinite healing output, and demands 10000 healing per second constantly.
The 25k tank takes a 20k hit, has 5k. His healers now have to scramble to put out 15k healing in 2 seconds to make sure that next hit doesn't kill him. IE, demand is for 7500 healing per second.
The 30k tank takes a 20k hit, has 10k. Her healers have to put out 10k healing in 2 seconds, IE, 5000 healing per second. In these terms, the 25k tank requires -50% more healing throughput- than the 30k tank.