[sushiboat]

Vine Ogres are fine as they are. Building a VO army of a decent size requires lots of mage turns. Compare that to the same number of mages casting Pale Riders. VO are fodder, albeit fodder with quite a few hit points. One SC will slice up any number of VO and give the SC a ton of life drain HP. So there goes your investment (in time as well as gems).

Nerfing the VO gives an even greater edge to death and blood nations. Of the three major summoning paths, nature is definitely not the strongest and arguably the weakest.