While there are guidelines to keep in mind when deck building (no Game Changers in Exhibition or Core, no mass land denial through Upgraded, etc.), the bracket system is emphatically not just "put your deck into a calculator, get assigned a rank, and be ready to play." I deeply appreciate the tools that websites like Moxfield and Archidekt have put together to give you an overall estimate, and they've done some fantastic iteration to help emphasize intent as wellbut I want to stress that any estimate is just an estimate
The Field decks are poised to attack good stuff decks from an unfamiliar angle: the zombies allow you to ignore even the largest creatures and immediately apply pressure after a sweeper or Ugin downtick
Either way, getting a copy of Teferis Ageless Insight is a solid reprint, as it sees plenty of Commander play
However, since unopened items are often difficult to conclude by photos alone, it is safe to judge including price, seller rating, and the politeness of the description
When Talion, the Kindly Lord enters the battlefield, you choose a number between one and ten, and whenever an opponent casts a spell containing that number either in mana value, power, or toughness you draw a card and that player loses two life