Vendetta, the fourth expansion for Riftbound, is reshaping how players build decks in the League of Legends trading card game by introducing Champion Legends that straddle opposing color pairs. The mechanic forces champions to dance between two ideologies that traditionally clash, opening deckbuilding territory the game has never explored.
Riot's design team selected three champions to pioneer this new territory: Akali bridging Red and Green, Jayce merging Orange and Blue, and Kennen uniting Yellow and Purple. Senior designer Jon Moormann walked through the reasoning behind each pick during a June studio visit.
Akali emerges as the Rogue Assassin, harnesses the duality of Fury and Calm by letting players move a friendly unit from a showdown back to your base, with the option to ready it if the card is Empowered. This new mechanic lets you activate a card's powered-up state by spending energy or triggering certain effects, granting bonus abilities once activated.
Her Champion Units pivot around ability and attack triggers, mirroring the classic League of Legends Akali gameplay loop. "You kind of run in with Akali, get some attack triggers off her going in, and then pull her back out again," Moormann explained, comparing the pattern to dropping smoke bomb cover before retreating. Both her Red and Green Champion Units gain extra effects when they move, cementing the hit-and-run fantasy.
The team chose Akali partly because she's beloved across the League community, but also because her backstory as a master of twin disciplines made her a natural fit. She's caught between Shen and Zed's opposing ideologies, which translated cleanly into card mechanics.
Jayce, the Defender of Tomorrow, represents Body and Mind with a focus on gear synergies and readying mechanics. For one rune expenditure, he readies a single gear. If Empowered, that same cost readies two instead. Moormann called Jayce one of the weirder Legends because "he's all about playing out gear and Units and readying them, so he feels kind of combo-y."
Moormann noted that Body and Mind represents the opposing pair with the most design space available, yet the team still gravitated toward Jayce. Once the core concept clicked, it shaped the entire deck around him. "Weirdly, [Body and Mind] I think is the opposing domain that has the most space in it," Moormann said.
Kennen, Heart of the Tempest, brought the steepest challenge. The Order and Chaos pairing required substantially more work to feel thematically sound because the colors' mechanical overlap didn't always align with what made sense for individual characters.
Kennen's kit leans into Flow, a new Vendetta mechanic allowing you to play cards from your trash for a cost before banishing them. His Legend grants Assault 2 to an attacker when you play a card from outside your hand, but becomes Disempowered each time you use it, forcing you to reinvest resources before triggering it again. This creates a tense resource management layer absent from the other two opposing champions.
The Burn mechanic, which mills cards from your deck to the trash, pairs neatly with Kennen's strategy, as do his purple Champion Unit and Signature Spell Lightning Rush. Senior game designer David Smith, who favors Kennen as a champion, points to his Kinkou Order membership as justification. Kennen belongs to an organized structure but "still very much is independent and does his own thing," Smith said, capturing the tension between Order and Chaos.
Still, landing the mechanical fit took considerable iteration. "For Order and Chaos, that one has been much more challenging," Moormann admitted. The colors' inherent properties didn't immediately suggest a character who could authentically represent both. "But in terms of mechanically fitting into being both Yellow and Purple, that took a lot more work, and I really like where we landed."
Moormann emphasized this won't be the last opposing-domain Legend we see, but such champions will arrive less frequently than traditional single-color legends because the thematic and mechanical alignment demands more careful design. "There's a lot more space in yellow [and] purple as a color combination that we're not exploring with Kennen," he said, hinting at future possibilities the team is already considering.
Vendetta launches July 31 with over 160 cards, including nine Champion Legends and 50 Showcase variants, marking a new era for how Riftbound evolves the card game.
Author Emily Chen: "Dual-domain Legends are the kind of design risk that either revolutionizes deck building or becomes a gimmick nobody touches. Kennen's clunky Empower toggle suggests Riot is cautious about pushing opposing pairs too far, which feels smart."
Comments