Complains are ture. G'hern Birthmother isn't a good summoner champ compared with Spawnpool Guardian and Myx Matriarch. Though she gives snyergy to G'herns with Surge: Moga. Still no other support abilities like Spawnpool Guardian and Myx Matriarch. So here are some of my suggestions for this champ..
I don't care for swimming lessons being on her, the loss of a rank of overseer or the loss of surge. (Edit: Ah, surge Ghern as an upgrade. You might want to make that the same color as the rest of the upgrades. I read right over it. And you should just say increased health by 6 instead of giving her Stat: Health Bonus 2) I like it otherwise and agree that she could use a bump in damage.
