Updated after the pet rework ...

Straight up damage, survivability, and loot pick up.

You can change the base health and shield mods, for their linked counterparts, when needed.

Stats - https://i.imgur.com/fwpZUfW.jpg

The new bond mods can be bought at the 3 trainers - Master Teasonai ( Cetus ) , The Biz ( Fortuna ), and Son ( Deimos ) , for the correct rep.

Bully through every boss in the game!

• Leptosam Mutagen : While "Proto Shields" are the best defense for your Deimos pets, not everyone likes the "default" tail.

• Antigen : All the polarity choices work with this build, so please feel free to pick the head-choice you love. ( You may add or subtract a forma, depending on the head choice. )
  https://warframe.fandom.com/wiki/Predasite?so=search

Gild : After spending 5k rep and 10 Son Tokens, you get to place a forma for free and name your pet. Level to R30 again, to place your only bought/built forma. Then, level them to R30 for the final time...

The Joker : "Have you ever danced with the devil in the pale moonlight? "

Me : "No. But, my Medjay can bully a Void Angel until it cries. "