Enigma Ridges Fun: 4 Impact: 3 Chaos: 2 Giving a Land Tax effect to everyone except whoever has the most lands is a pretty good leveling effect, although putting the lands into your hand rather than onto the battlefield tapped limits how immediately useful the effect is
Elesh Norn, Mother of Machines is another option, but its stax effect is so aggressive itll draw an unbelievable amount of heat
Ace's powerful Devil Fruit: the Rogia Foco Foco
At the night's end, I told her I'd be interested in taking her out to which she replied, I'd better not
Youll also need to make sure your casting costs are tracked because so many creatures have abilities activated by the X cost
I love Supply with tokens, Aggro, planeswalkers making a bunch of blockers to keep your team alive or control to get a bunch of blockers earlier or win later