Riot announced a new featured game mode which will go live on the PBE soon.
The new game mode features new items and a brand new concept. You can earn Kraken (golden coins) for various activities and use golden Krakens to recruit new brawler minions as you vie for dominance on Summoner’s Rift! The new minions can be upgraded and will replace your normal lane minions.
The Brawlers:
There are four types of brawler minions. Each game you will spend Krakens you’ve earned to hire one brawler minion type of your choice, then upgrade him as you see fit throughout the game. Once hired, your brawler will replace a regular minion and spawn in every wave of all 3 lanes for the rest of the game. Each brawler minion has 3 upgrade paths (Abilities, Attack & Defense) you can pursue to customise them how you want. Upgrades can be purchased from the new “Brawlers” tab in the item shop at fountain using Krakens.
Ironback
Melee: Tanky siege
Initial hire: Your Ironback takes 25% reduced dmg from enemy turrets.
Lv 1: Your Ironback deals 175% dmg to enemy structures. Gains a shield that blocks the next basic attack from a champion or a turret. (Shield CD 10sec)
Lv 2: Your Ironback deals 250% dmg to enemy structures. While the shield is active, it takes 35% reduced dmg from minions.
Lv 3: Your Ironback deals 325% dmg to enemy structures. The shield CD is reduced to 3sec and it now takes 60% reduced dmg from minions.
Razorfin
Melee: Champion pursuer
Initial hire: Your Razorfin has 100% bonus attack speed.
Lv 1: Upon aggroing an enemy champion, it will pursue them endlessly. While attacking enemy champions your Razorfin has 100% increased movement speed and ignores unit collision.
Lv 2: Each time your Razorfin hits an enemy champion, it applies a mark. On the 3rd mark, Razorfins deal 300% damage to the target.
Lv 3: Two Razorfins will spawn for you in each wave.
Plundercrab
Ranged: Champion harass
Initial hire: Your Plundercrab shoots an additional shot at a nearby champion with +150 attack range but 50% damage.
Lv 1: Your Plundercrab has +50 attack range. Gains a stacking 20% attack speed buff (up to 150%) for 3sec every time they hit an enemy champion.
Lv 2: Your Plundercrab has +100 attack range. Deals 150% dmg on hitting enemy champions.
Lv 3: Your Plundercrab has +150 attack range. On-hit bonus now also applies when hitting enemy minions, and shoots an additional shot at ALL nearby enemy champions.
Ocklepods
Initial hire: Your Ocklepod casts a magic shield on allied minions every 10sec, blocking 80 dmg. The shield lasts 10sec.
Lv 1: Your Ocklepod has 10 MR. Spawns a moving Clairvoyance every 30sec. After a 4sec reveal delay, it grants vision to a nearby area for 4sec.
Lv 2: Your Ocklepod has 20 MR. Shield now blocks 150 + (1 x Ocklepod's AD) damage.
Lv 3: Your Ocklepod has 30 MR. Clairvoyance is now cast every 10sec, and the reveal delay is reduced to 2sec. Duration and distance travelled of the Clairvoyance is increased by 50%. Shield now blocks 300 + (1 x Ocklepod's AD) damage.
Read more on the official announcement