you should watch tournament results, decklist adoption and TCGplayer market movement for signals
[casthaven]Taigam, Ojutai Master[/casthaven] sits in a weird place for me
Top 5 3 Black Common/Uncommons: Starscape Cleric Offspring gives this way more playability and redundancy if youre trying lifegain combos in Orzhov
In a rule specific to drafting Double Masters, you also get to pick two cards whenever you open a pack, which means you can end up with a lot of powerful cards and a slightly stronger archetype as a result
Finally, Freyalise's -6 ability will draw lots of cards with a board state full of Elves, and getting enough loyalty counters for that ability should prove easy in most games.
New keywords in Thunder Junction include plot, which allows you to exile and re-cast spells without paying their mana cost