They are known for their ability to build armies of token creatures , control the battlefield through enchantment-based removal , and gain life with lifelink
Morph isnt particularly strong and doesnt quest for much, but it's cheap, only costing two ink, and since it can come down early, you can set up some great shift plays just a few turns later
This two mana artifact enters tapped, it doesnt untap on your untap step, and at the start of your turn you can choose to skip your turn, untapping the Time Vault
Mill decks will definitely be including this Jace Variant, as its ultimate ability is too tempting and hilariously mean to resist, and counter manipulation via Proliferate makes it that much easier to activate
That said, unless you are planning on opening a lot of boxes (to help even out variance), I'd probably plan on getting the non- Masterpiece value and treat the possibility of opening a super-sweet, super-expensive Invocation as a bonus lottery ticket that you get for free when buying a box of Amonkhet
Theres not much more to say here really its a solid rock, and the decks that want it really want it
