Im confident that this mechanic will be good because previous versions have played out very well
When I built Phenax way back in 2014, I had a pretty small collection and didn't have a huge amount of disposable income, so I decided to pick up a few key cards and build the rest with cards that I already owned
For example, while it's in your graveyard, Blitz Automaton is a colorless creature card with mana value 7
Bushi Tenderfoot to Kenzo the Hardhearted : you have to deal damage to another creature and not have Bushi die, then you can flip it
Multiple Gut Shots and Lava Darts also add to the critical mass of cheap spells and they make it much easier to have three spells on Turn 2 and virtually guarantee three spells on Turn 3
The leader of Caesar's Legion is all about domination through violence, highlighted by this Commander deck's very simple theme: Attack to win