King Suleiman ($161) King Suleiman was probably quite good when it was first printed, and djinn/efreets were more common to see, but these days its just pure nostalgia (and Reserved List, obviously!)
This allows the card to be sent back to your hand instead of being discarded, but only when they are defeated in a challenge
Anikthea, Hand of Erebos creates 3/3 zombie creatures out of enchantments youve exiled from your graveyard
Expect to pay into the hundreds or even thousands for the most expensive cards, so definitely ensure youre buying through a legitimate trader or auction house to guarantee your money is well spent
Now if those wildcard bundles are not worth that much to you, I'd understand your hesitation, but within the MTGA economy, this is excellent