Entropy, Uncommon 7/7/7
N= Aqua in your hand matching Burning in enemy's or vice versa
M= Aria in your hand matching Unliving in enemy's or vice versa
Lowest facility +N/2
Lowest facility +M/2
I think this could be truncated effectively this way:
N= Aqua matching Burning in game
M= Aria matching Unliving in game
Lowest facility +N/2
Lowest facility +M/2
...since you're just looking at the number of matching pairs.