The Alphas clearly dominate any list that includes them
She is a commander that has you milling cards, and then trying to bring them back from the graveyard
Some abilities are just sign-posted to be linked with other cards in the set, like with the aforementioned Jim Hawkins, Space Traveler card, and this card is almost definitely built exclusively to get yourself a free Lucky Dime, the seven cost item that no doubt plenty of decks will be building around this set
Four mana is quite a lot for this effect but it has a lot of potential in a number of formats, even before you apply any cost reduction effects, making Otawara one of the best blue lands in the game
This is often written in terms of binomial coefficients as: This is most easily interpreted as N choose n i.e
Bonder's Ornament Let's start with ramp and card draw with this colorless Mana Rock