It blocks most things, protects your Planeswalkers, and helps slow the game down
It doesn't matter that the token is exiled when it is returned to your hand, because the cost is paid, and Ink-Eyes, Servant of Oni is going to steal you something good
It makes good use of earthbend thanks to its static ability and it's good at any point of the game
There are a ton of people looking for products that may be collecting dust in your closet
Fizzling Collected Company is also a huge swing, while other weird targets include Aether Vial (although be warned that your opponent can choose to not put the creature into play after they see you sacrifice Mistcaller), Dredge, Hollow One (where you get Bloodghast and Flamewake Phoenix), and strange blink decks involving Flickerwisp and Restoration Angel
However, this Red or Blue Land card (an Island Mountain, being both types at the same time despite only being able to provide one type of mana each turn) is still ludicrously expensive even if you opt for the lowest cost version on offer via Cardmarket
