If a spell is exiled, it's removed from the stack and thus will not resolve
In most cases, though, these cards were still just alternate art reprints
Rhystic Study is incredibly annoying in Commander, but really, it's just a very good card-draw spell

Turn 7: Draw two cards with Summon: Bahamut's chapter 3 trigger Sacrifice Bloodstained Mire in response to Summon: Titan's chapter 2 trigger to fetch Mountain Discard and draw to Rydia's landfall trigger Return four lands from the graveyard to the battlefield with Summon: Titan's trigger Discard and draw to Rydia's landfall trigger four times Attack Seat 1 with Summon: Bahamut (9 damage) Cast Pathbreaker Ibex Play Forest Discard and draw to Rydia's landfall trigger Cast Etali, Primal Conqueror Free cast Topiary Stomper, Enlightened Tutor, Dryad of the Ilysian Grove, and Scute Swarm with Etali's enters trigger Play Boseiju, Who Endures as second land for turn Discard and draw to Rydia's landfall trigger Scute Swarm triggers, creating one copy (two total) Seat 3 casts Path to Exile targeting Pathbreaker Ibex Seat 3 copies Path to Exile with a Spider-Verse trigger, targeting Summon: Bahamut Search for two basic lands Discard and draw to Rydia's landfall trigger twice Scute Swarms trigger twice, creating six copies (eight total) I love tuning my decks
