mtg cards like rhystic study Proxy Card Enemies teach what you *need* to know. Similar cards to Rhystic Study

Getting your 6/6 flying trampler to do damage each turn shouldn't be too much of a problem

Seeing Visions Sleeve Code | Secret Lair (expired) - MTGA code to redeem Seeing Visions Serum Visions Sleeve from the December 2019 Superdrop Secret Lair

If all of the damage is prevented, Obosh's effect no longer applies

But I'm sorry to report that in actual gameplay, these three mechanics all do very different things

Ancestral Visions is a bit like the inverse of Treasure Cruise being very good in your opening hands and getting increasingly slower and clunkier as the game goes on

But not all the cards in Unfinity are acorn cards