I'll help you understand what's classified as Temur Prowess by looking at the actual tournament data.
Yes, Temur Prowess is essentially the Valley Floodcaller combo deck. The archetype is built around Stormchaser's Talent (100% presence, 4 copies average) and Valley Floodcaller (100% presence, 2.5 copies average) as its core combo pieces. The deck uses prowess triggers and spells to generate value through the Talent while Floodcaller creates hasty copies of creatures for explosive turns.
The deck also universally runs Enduring Vitality (4 copies) for card selection and life gain, Thundertrap Trainer (97% presence) as another prowess creature, and a spell package including Torch the Tower, Stock Up, and Analyze the Pollen. Some builds include Song of Totentanz for additional token generation, while others run more creature-focused versions with Badgermole Cub or Into the Flood Maw.
The archetype has posted a 49% winrate across 44 tournament entries in recent Standard events, making it a solid tier 2 option in the current metagame.
Sources:
Data from 17 tournaments: 53% MTGO, 47% Melee.
https://www.mtgo.com/decklist/standard-challenge-32-2025-11-2912825473
https://melee.gg/Decklist/View/3a635153-7168-4ca0-b044-b3a50009555a
https://melee.gg/Decklist/View/f23e7a38-6d76-41c9-8903-b3a500a332e8