What puts Power Hungry on my list is just how powerful and consistent and deep it is
Card Set(s) -AWAKENING OF THE NEW ERA-[OP05] CARD VIEW OP05-034 | R | CHARACTER Baby 5 Attribute Special Block icon 2 Effect [Activate: Main] (You may rest the specified number of DON
They are permanents that offer some static effect to the entire board, such as Chaosphere
Obviously, Spellementals (the deck that actually played Flow State) falls into this category with Eddymurk Crab and Hearth Elemental, but so might a whole generation of Gran-Gran players who haven't gone to school yet
Other negative trends have only recently ended, or players hope that they're about to end any day now
Other Persist creatures need a little more help, but as long as you have something in play that damages your opponent when a creature dies or enters the battlefield, like Impact Tremors, its still a combo that ends the game on the spot