In Amethyst/Steel the one foil Jafar is key, then there are just 7 Illusion cards
If you have this in play and cast Jodah, the Unifier or Niv-Mizzet Reborn, this basically doubles your mana for the turn
Consider this card in Type Four, with an expensive tag team
Tyranids are masters of their own evolution, and the ingenuity coming from this feels like a natural fit for them
That means that some packs will contain two rares, and some will even contain two pieces of the Power 9
You can get flood counters from Xolatoyac and cards like Aquitect's Will and Eluge, the Shoreless Sea, though you have to go through quite a few hoops for those untapped lands