Upon transforming, these creatures will be bigger, stronger and gain more abilities
So I think I'd like to keep it as a 2/1, however if it was created in a format that contained gut shot or something similar, I would up it to 2 toughness
Mewtwo has always been a fan-favorite, and the Mewtwo VSTAR from Crown Zenith takes things to another level
In the trailer for the set, you can see many of the new cards
It will double your token making of any sort, so that would turn the 7 made from Hunted Horror into 14
There are also some creatures that interact with the graveyard, such as Scavenging Ooze, Anafenza the Foremost, and Remorseful Cleric