It is the second Adventure in Vi's Campaign and is unlocked by completing A Day on the Beat and getting her to 2 stars. Successfully completing this adventure currently doesn't unlock any other adventure.
The sharp crack of a rifle sounds just as the ground by your feet explodes! As you fall to the side, you see a slender figure slowly walking you way...
Noxus focuses on early game aggression - utilizing direct damage spells and low-cost creatures with aggressive stats (high attack but low health). Noxus lacks end-game cards and can run out of steam against bulkier decks.
The Nexus represents the player's health. Apart from mode-specific exceptions, it has a maximum of 20 Health points, which it starts the game at. It cannot go above its maximum health. But maximum health can be increased, by cards like 9Gorlith the Unscalable, capped at 99.
It is destroyed when its health is depleted or the player otherwise loses the game (eg. 4Fiora or decking out)—at which point the game ends and its player suffers a loss.
Legends of Runeterra content
Mana
Mana is the primary resource used to play cards in Legends of Runeterra.
Skills are committed to enact a unit's card text in a way that can be reacted to. If card text creates a Skill, there will usually be an icon before the text to indicate this.
The text of skills is usually written as if it's on the unit itself, but they count as their own card. In particular, damage dealt by a skill is not dealt by the generating unit.
Units that have Stun ('are stunned') cannot have attacks or blocksdeclared with them. Granting a unit Stun ('stunning it') removes it from combat, even if they were challenged before. You can, however, challenge a unit previously stunned. Stun lasts until Round End.
A unit that is Stunned can be Stunned again, and is counted as being Stunned again.
Highest Power, with ties broken by highest Health then highest Cost. If a tie cannot be resolved, cards will be targeted based on a hidden serialized id given to it upon being played.
Legends of Runeterra content
Recall
Return a Unit or Landmark to hand and remove all effects applied to it (even everywhere).
Cards that are in hand due to a Recall effect are revealed, visible to the opponent.
Does not undo card transformations and replacements.
If the player already has 10 cards in their hand, the card(s) will be obliterated.
Legends of Runeterra content
Strike
A striking unit attempts to deal damage to its target using its power (or Health if it's Formidable). A non-Formidable unit with 0 power does not strike when commanded to do so.
Strike effects occur when a unit strikes anything, Nexus or Unit.
The strike itself (and any effects that are triggered on the strike, including Nexus Strike on Overwhelm and Lifesteal) will resolve BEFORE any of the resulting effects (often "kill" or death effects such as Last Breath). However, strike effects do not trigger if the unit is obliterated after striking.