How to Build Rek'sai in Riftbound | First 40

The First 40 series is a new deckbuilding breakdown focused on one simple goal: identifying the first 40 cards we believe form a strong, functional starting point for a Riftbound deck — before tuning, teching, or metagaming takes over. In this episode, we break down Rek’Sai (Void Burrower), a fast and aggressive Fury/Order legend built around conquering every turn, revealing cards off the top of the deck, and overwhelming opponents with sheer board presence. We walk through a complete 40-card core list, explaining how each card supports Rek’Sai’s primary game plan, and why this low-to-the-ground, swarm-focused approach has been the most effective early build. We take a close look at the deck’s defining engine — Undertitan — and how repeated reveals through Rek’Sai and Void Rush enable explosive turns that flood the board with might far earlier than most decks can respond. From high-density two-drops and Legion synergies to key interaction like Cull the Weak, Hidden Blade, and efficient combat tricks, this breakdown focuses on maximizing consistency and pressure. We also cover battlefield selection, early-game sequencing, and alternative directions for Rek’Sai, including hook variants, Phoenix-based control shells, and midrange pivots that may emerge as the meta evolves. Whether you’re picking up Rek’Sai for the first time or refining an aggressive strategy, First 40 is designed to give you a clean foundation to build from. 📺 This video is part of our First 40 series, exploring early deck cores for different legends in Riftbound. - Timestamps - 0:00 Intro 0:22 Legend Summary 1:12 Battlefields 2:22 Main Deck 18:46 Maybe Board ======= SOCIALS ======= Follow us for more competitive Riftbound content: 🎥 YouTube – https://www.youtube.com/@TurnemSideways?sub_confirmation=1 🐦 Twitter – https://x.com/TurnThemSide ⏲️ TikTok – https://www.tiktok.com/@turnemsideways 📸 Instagram – https://www.instagram.com/turnemsideways/ 🎧 Spotify – https://open.spotify.com/show/0qFsptquUddq21pGXu9Thx 🍎 Apple Podcasts – https://podcasts.apple.com/us/podcast/the-winning-point/id1847709608 🎮 Discord – https://discord.gg/MNFCaxFGpZ 🩵 Bluesky – https://bsky.app/profile/turnthemside.bsky.social 📝 Threads – https://www.threads.com/@turnemsideways