This is a Battlebox! With some unique rules:

1. Players share a graveyard.
2. Players draft opening hands. No mulligans.
3. Players begin the game with a Reliquary Tower on the battlefield.
4. Once per turn, players may play a basic land from outside the game.

Wishlist:
Sleeper Agent / Scourge of the Skyclaves
Diaochan Artiful Beauty
Questing Beast
Olivia, Crimson Bride

Banlist:
Master of the Feast

Analysis: Color Catagory/Mana Value
W 3.32
U 3.30
B 3.30
R 3.30
G 3.30
M 3.69 <-reduce this number