[{quoted}](name=Super Cow Swag,realm=NA,application-id=A8FQeEA8,discussion-id=jvOvrEHP,comment-id=000100000000,timestamp=2018-08-12T06:10:16.778+0000)
Ya ocean drake comes to mind too but it doesn't strictly benefit tanks, its like mountain and cloud drake, anyone can use them. (where as no specific champion class can strictly benefit more than the others, just niche champions like the few splitpushers/duelists.)
Infernal is a dragon that anyone can use except tanks because its not a straight up damage buff its an increase to ap and ad based on a % you already have.
And Hp or resistance dragon would be nice.
In keeping with the OP's theme of a frost drake, what about a dragon buff that gave you an ice shield for a percentage of your maximum health? While the shield is active you could also get increased resistances. Once the shield is popped you would lose the resistances. 5 seconds after receiving damage the shield would regenerate. This would benefit champions that build health--mostly tanks, brawlers, and guardian supports--and it wouldn't give as much benefit to classes that don't itemize health. I guess it is kind of like a combination of
passive shield and
passive resistances.
Example frost dragon buff: Gain a shield equal to 5%/7.5%/10% of your maximum health. While this shield is up, gain resistances equal to 10% of your bonus Magic Resistance and Armor. When the shield is destroyed, the bonus resistances are lost as well. After you are out of combat for 5 seconds, the shield will slowly regenerate until it is back to the full amount.