Cards like Mindcrank especially can turn opponent-on-opponent violence into something that plays into your gameplan easily
I also plug Atlantis Attacks in here as a noncreature spell that can give you a big leviathan as well as bounce a couple permanents
These kinds of effects can really add up, especially if you have a few of them out at once
While it is probably good enough in a deck that is built on the theme of +1/+1 counters, outside of this very specific archetype, adding a single +1/+1 counter to a creature just isn't enough value (even at instant speed) to make me add another tapped land to my deck, especially considering that green already has five MDFCs that I really want to be playing
Based on the alien villain from Final Fantasy 7 , Jenova, Ancient Calamity is a 1/5 alien legendary creature that costs four mana (two colorless, one black, and one green) to play
He can quest for two lore, has a strength of three and a willpower of six