Or 11 power
The central gambit here is using Squee, the Immortal as an always-available infinite combo piece, though most of the infinite combos are fairly convoluted (3-4 cards)
Not only is it good to drop in off of Aether Vial like all the other creatures, but being a legendary creature is actually a big advantage: The deck can continually reuse it thanks to Karakas
Each deck was capable of being the archenemy or being on the hero team
The key tweak is the shift in how energy works: rather than filling your deck with specific energy cards, you simply select the type (or types) of a deck when building it, and energy is automatically generated once per turn for you to attach how you wish (for two-type decks, which are required for the Dragon Pokmon lines such as Dragonites, which type comes up next is randomised, which effectively replicates a multi-type deck equivalent in real life)
(2024-09-20) If something tries to turn a face-down instant or sorcery card on the battlefield face up, reveal that card to show all players it's an instant or sorcery card