Needs to be enough that people feel they are getting their moneys worth, but not so much that big operations can just take all the decks and crack them for singles
The next thing I looked at here were soldiers
Vintage Cube players sometimes splash green in their blue artifact decks just so this Eldrazi can fetch Tolarian Academy, and it grabs various Sol lands in formats like Historic and Modern
This makes it particularly potent alongside Persist, a mechanic that allows a creature to return to the battlefield as long as it doesnt have a -1/-1 counter on it
Politically, its difficult to know whether or not having a lot of Energy is good, let alone what number is dangerous, since other players arent sure how to value Energy as a resource
To use this card, players will need to use three colorless mana and two white mana