Let me look up both the Prowess archetype in Modern and the card Stormchaser Talent simultaneously.
Stormchaser Talent does not appear in the top 20 mainboard cards for Modern Prowess over the last 30 days, and the card search returned no results either in the local database or on Scryfall. It is possible the card name is misspelled, does not exist, or simply is not being played in the Prowess mainboard in meaningful numbers.
Looking at the actual data, the Modern Prowess mainboard is built around four-of staples like Lava Dart, Cori-Steel Cutter, Dragon's Rage Channeler, Lightning Bolt, and Monastery Swiftspear, with supporting pieces like Slickshot Show-Off, Mutagenic Growth, Expressive Iteration, and Violent Urge rounding out the list. None of the top 20 mainboard cards across 191 Prowess decks in the last 30 days is named Stormchaser Talent.
Could you double-check the card name? If you meant a different card, I am happy to look it up. It is also possible this is a card that sees little to no play in the archetype and therefore does not appear in the dataset.
Sources: Data drawn from 191 Modern Prowess decklists between 2026-06-21 and 2026-07-21.