Rare prints make it a chase card, so its a tournament threat and a grail for serious collectors
Very few artifacts allow you to tap and draw a card, with no restriction
There are plenty of creatures that become much stronger when they can use their activated abilities multiple times, and you can also copy Maxs ability with cards like Strionic Resonator to untap multiple creatures on a turn
Its tedious, with way too many back and forth steps to follow, while it's frustratingly impossible to figure out what cards you need and what youre allowed to trade
Thankfully this issue can be mitigated with cards such as Narset, Parter of Veils
Accepting other colors gives you access to similar pillow fort cards like Ghostly Prison, Propaganda, and Sphere of Safety that stop your opponents from attacking you specifically