You see, Elves had a really good pack in the first Jumpstart product that gave us Allosaurus Shepherd
Creatures (11) Planeswalkers (4) Lands (26) Spells (19) Maybe this one is taking the plan to Cartouche our opponents creatures thing too far, but we can also just Cartouche our Zombie tokens
For the cheap cost of three mana, Altair can make players pay twofold for killing their Assassins
Not to mention potential application in blue-based control shells, but I do not anticipate those being extremely strong on release, especially compared to Merfolk
Conversely, power levels can be more abstract, like Commander Spheres Lasagna Tier: This obviously is much more open to interpretation when it comes to cards that are welcome and those that arent, but it places more emphasis on the enjoyment of the game than maintaining a prescriptive card pool or rule set
Sadly, since theres not much supply to go around thanks to Jin Sakais origins, the sky is the limit