I'd not pulled a single SAR from my previous two previews (Journey Together and Prismatic Evolutions), and when counting the Journey Together Products I'd purchased myself, I'm at around 200 packs with no SAR
Unfortunately, that's the extent of my knowledge about both Temurge and the pioneer format, so I don't have a ton of suggestions
Let the card air out for 30 minutes
Turn one, draw a card, play nothing, discard a card in the cleanup step, throw Primeval Spawn into the graveyard, turn two basic swamp, cast Reanimate targeting Primeval Spawn is totally something you I would try do in a game of EDH if the restriction wasnt present
This could be applied to Misty, giving the player three or four flips rather than infinite
Many, many games have been decided by whether someone had a first-turn Elvish Mystic