This card does have a powerful effect, but don't be surprised if it drops down to a more reasonable price a few weeks after the set launches and the dust settles
There are likely better Emerald/Steel lists out there, but these decks are designed to focus on and elevate the things that already work in the original starter deck
Sap Vitality is a great removal option for the mono black deck, buffing one of your many creatures
Flying When this creature enters, if you cast it, return all non-Elemental creatures to their owners' hands
I at first considered this entry an indictment of Mwonvuli Oozes inclusion on the Reserved List, but I am now forced to reconsider
They enter untapped, provide good fixing, and have few downsides