Grey Ogre A Gray Ogre is a 3-mana 2/2
This commander is a discard payoff, and its a nice combo with Sadistic Hypnotist since you can sacrifice the elf tokens to make them discard more cards and make more elf tokens
The Grixis color combination isn't great at ramping mana, but vampires tend to be very efficient in their cost and rely on each other for benefit, besides, you are limited to casting one collected card on each player's turn, so it's not broken right
It has haste, and can get +1/+1 each time a spell is cast, ideally a burn spell
While these cards cannot transform to their other side once cast, having the freedom to decide between mana production and board presence grants a lot of freedom mid-game
That makes some sets near impossible, but I dont feel any shame over my Evolutions set missing all the IC stamped cards, or my promo set missing all the Worlds placement cards