Battle for Atlantis
Battle for Atlantis is a large-scale Alliance vs. Alliance feature where four Alliances compete for control of Atlantis.
The goal is to capture and defend Nodes to earn

Victory Points. Nodes generate Victory Points automatically, and the Alliance with the most Victory Points at the end of the season wins.
You can

attack enemy Nodes,

defend captured Nodes,

repair breached Slots, and coordinate with Alliance members to

focus on key targets. A focused strategy is often more effective than trying to control the entire map.
Nodes
Nodes vary in size and value. Larger Nodes generate more Victory Points, have more garrison slots, and are harder to hold.
To capture a garrison slot, defeat the heroes defending it. Empty slots can be taken without a battle. To take control of a Node, your Alliance must
control the majority of its slots when all slots are breached. Up to two Alliances can attack the same Node at once.
Once captured, the Node starts generating Victory Points for your Alliance and is shielded for a short time. Nobody can attack or take it while the shield is active.
Unclaimed Nodes are held by the Atlantean Remnants. Their garrisons are built from the strongest heroes of the players in your match, and the larger and more central the Node, the stronger the team defending it.
Roster and Battles
During the Preparation Phase, assign 25 heroes to your Atlantis roster. These are the only heroes you can use for the rest of the season.
Battles are instant and automatic.
Select 5 heroes, confirm, and receive the result immediately. Please note that unlike Treasure Hunt, your Healers cannot heal a hero above the HP they entered the battle with.
Heroes placed in a garrison stay there until the slot is breached. They cannot attack or repair while stationed, but you can withdraw them at any time. Please note that withdrawing from a contested Node abandons the slot.
Hero Availability
Three things keep your heroes from being battle ready.
1. Attacks use
Atlantis Energy, which regenerates over time. Spending it on Nodes your Alliance cannot hold can weaken your overall strategy.
2. Heroes take damage in every battle, and
lose a further 20% HP through Attrition afterwards, allies and enemies alike. This lets your Alliance wear down stronger defenses over multiple attacks. Heroes stay usable down to 10% HP, below which they are unavailable until they recover, either over time or instantly with

Medkits. Unused Medkits expire at the end of the Atlantis season.
3. After attacking an enemy hero team, your
heroes travel back to your Headquarters before they are available again. They recover HP along the way, and the deeper you push into enemy territory, the longer the return. Heroes do not recover HP while stationed in a garrison or working on a repair.
Repairing Breached SlotsSlots breached by an enemy can be repaired by the Alliance that controls the Node.
The player who starts a repair assigns 5 heroes. Those heroes move into the garrison once the repair finishes, so the slot is defended again the moment it is restored.
Up to two more Alliance members can join to speed up the repair. They don't assign heroes.
Season Flow
A full Battle for Atlantis season runs two weeks.
Preparation Phase (3 days)Friday 12:00 to Monday 12:00 UTC.
Choose your hero roster, check your opponents, and plan with your Alliance.
Conflict Phase (7 days)Monday 12:00 to Monday 12:00 UTC.
Fight for Nodes, defend territory, repair breaches, and earn Victory Points.
Resolution Phase (4 days)Monday 12:00 to Friday 12:00 UTC.
Review the results and collect your rewards.
To participate in the upcoming season, you must be in an Alliance
before the Preparation Phase begins. Joining or switching Alliances after the Preparation Phase starts will make you ineligible for that Battle for Atlantis season. Please note that the Preview server may run on a different schedule.
Atlantis Points and MatchmakingMatchmaking is based solely on your Alliance's Elo rating, called Atlantis Points, not on combat power. You can find it in the Alliance profile, next to your Atlantis League.
Your Alliance is matched with three opponents of a similar rating. Higher Leagues bring stronger opponents, but also better rewards.
Your Alliance's Atlantis Points are the sum of each player's personal Elo. The personal Elo you gain depends on how well you perform in the current Atlantis season.
The total Elo your Alliance gains or loses at the end of each Atlantis season depends on its performance. Depending on how strong your opponents are, the game expects your Alliance to reach a certain share of the Victory Points. If your Alliance is above it, you gain Elo. If it is below, you lose Elo.
Because matches are built from similar ratings, every Alliance is expected to win around a quarter of the time, with an average finish of 2.5th.

Rewards
Battle for Atlantis rewards are paid in
Tritons, the currency of the Atlantis Shop.
Tritons come mainly from two sources:
Placement. Your final position and your Atlantis League.
Activity. Your Alliance's Victory Points compared to your opponents. The bigger your share of the Victory Points at the end of the Conflict Phase, the more Tritons you receive on top of your placement reward.
Use Tritons to purchase Orichalcum Tokens, which unlock Pantheon nodes to give your heroes passive abilities and boosts.
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