If you only have two minutes before pairings go up: Diana and Master Yi are the safest seats, Kha'Zix has the scariest upgrade path, Ivern needs tags, Vi needs gas, and Jhin needs you to open the right spells.
For the full card-by-card explanation, read the companion breakdown: Unleashed Pre-Rift: Which Seeded Legend Should You Pick?
Diana
Interaction + easy splashes
You get real card selection, premium interaction, and a deck that does not need much help from the sealed pool.
Master Yi
XP inevitability
Yi is the cleanest XP accumulator. If the game slows down, Level 11 starts making normal combat math look stupid.
Kha'Zix
XP tempo payoff
The base deck is tight, and every good XP payoff makes the Voidreaver plan scarier.
Ivern
Zoo tags or bust
Brush matters only when you actually have Bird, Cat, Dog, Poro, or Ivern units to cash it in.
Vi
Aggro with awkward triggers
The good draws hit hard. The problem is sustaining pressure while still setting up 3+ excess damage.
Jhin
4+ energy spell puzzle
The cards are playable. The legend asks for more 4+ energy spells than the seeded kit naturally provides.
The table read
Snap keeps
Diana or Master Yi. Do not overthink it. Both decks already know what they are doing.
Pool check
Ivern and Kha'Zix both get much better when your packs line up. Count tags and XP payoffs before locking the build.
Danger zone
Vi and Jhin can still win games, but their legends ask you to solve a real deckbuilding problem first.
See you on the rift,
Shadow