If you get all three artifacts onto the battlefield, you create a legendary creature tokenthe first time we did thatand attach all three Equipment to it, making a giant, daunting creature
The checklist separates the 100 main-set cards from 32 secret or high-rarity cards, including rarity groups such as SR, SAR, AR, UR
The value almost certainly comes from Ionos unique character design, along with the popular mons featured in the background and gorgeous art style
For the Paragon cycle, I think I have a pretty good guess
Sidisi, Brood Tyrant helped define this wedge in the original Khans of Tarkir and will mill three when it arrives or attacks, and then when one or more creatures are put in your graveyard from your library, you make a free 2/2 Zombie token
That said, keep in mind that historic bias means the same player who doesnt pay for Rhystic Study might pay for your spiky dude, and it will be super annoying