Here's a full list of the different rarities and how many times each got printed (Source): U2 20.700 U3 31.000 U4 41.300 C1 31.000 C2 62.000 C3 93.000 C4 124.000 C5 155.000 C11 341.000 Examples for U2 cards from Arabian Nights are: Drop of Honey, Serendib Efreet and Juzam Djinn
The same is true for the fact that Tarkirs reformed clans and Dragons arent exactly getting along
If, by some chance, it isn't included in the explore-themed Merfolk commander precon coming with Lost Caverns of Ixalan the price will likely spike some when the deck releases
Deharme The Starter Commander decks are definitely emblematic of Wizards' push of the Commander format
even though that mana is restricted to casting your commander, its still the Commander equivalent of a Black Lotus, the most sought-after card in Magic history (well, except for The One Ring)
It's worth noting that holographic Pikachu cards from last year's collection are still fetching $10-15 on eBay, though many of the top-priced cards have been professionally graded
