1. League of Legends is introducing a new PvE (Player-versus-Environment) mode called "Swarm," which is inspired by the popular game Vampire Survivors. In this mode, players will face off against hordes of enemies, aiming to survive for as long as possible while collecting and upgrading a variety of abilities and items.

2. The Swarm mode is described as a "zen kind of carnage," where the focus is on the satisfying and relaxing experience of mowing down waves of enemies rather than intense, competitive gameplay. The mode is designed to offer a more casual and contemplative experience for League of Legends players.

3. The Swarm mode is expected to be a permanent addition to League of Legends, providing an alternative game mode for players who want a break from the traditional competitive matches. The mode will feature a variety of maps and enemy types, as well as opportunities for players to experiment with different ability and item combinations to create their own unique playstyles.