Campaign

The Campaign is one of the main PvE available to the players daily. It is unlocked at Player Level 26.
There are a couple of opportunities for the player to accumulate various resources and materials, most related to Artifacts.
Also, the Campaign is associated with its specific tokens that can then be spent to claim goods in the associated Campaign Store.
=The Map=
The Campaign map can be manually reset and completed every day. Similar to the Main Story it is composed of nodes that the player must trace one at a time.
There is a total of five types of nodes:
Node 	Count	Notes
Battle (B) 	15 	Out of which 5 are siege battles
Chest (C) 	5 	
Obelisk (O) 	3 	
Power-up (P)	4 	
Elf (E) 	3 	
The nodes are always placed in the same pattern regardless of the campaign map:
B - C - B - O - B* - P - B - E - B - C - B* - P - B - O - B - E - B* - C - B - P - B - O - B* - C - B - P - B - E - B* - C
==Sweeping==
After upgrading to Viscount Privilege level, the player may sweep through a maximum of 8 battles at the beginning of the Campaign map. After reaching Marquis Privilege level the sweep cap raises to 14 battles. If the player does not clear the remaining battles after the sweep, the next day, the sweep cap will lower with the number of battles not cleared.
Sweeping will not only automatically pass the Battle Nodes, but also automatically pass the rest of the nodes. Any choices can still be taken by the player, and they will all be available via a simplified popup.
This feature is welcome as it speeds up farming the Campaign daily.
=Battles =
In Battle nodes, the player will have to fight and defeat an opposing player from the server. The game seems to take the primary formation (hero and units) of that player. In case of siege battles, the formation is compressed (potentially unoptimal) behind a castle wall.
The battles are not true PvP as the players associated with the nodes are not aware of it, nor do they control the battle. Instead, their hero is controlled by the AI.
On the other hand, the player is still able to control his hero, take tactical decisions and even see the opposing army before starting the battle.
Battles can be stopped and restarted with no penalty.
==Difficulty==
The player teams are generated by the game engine in increasing difficulty. That is, the first battle node is the easiest, while the 15th is the most difficult. This of course takes the player's server into account only, so the bigger the player pool, the more choices, and combinations will be possible in the Campaign.
The engine seems to select the opponents based on Total Power comparison. In general, the Campaign is not designed to be a difficult challenge. However, because some Premium formations can outclass F2P formations at much lower Power, such opponents can present a real challenge.
== Player Formation==
The player may set up and change his formation at any moment before commencing a battle.
Since the opposing team can be inspected in detail, it is a very handy feature and should be taken advantage of should the opponents prove very challenging.
The player can use any hero and units they own. Spell Mark is enabled both for the player and the opponents.
During the same Campaign (same map), the player's units automatically restore at full health between battles.
However, if a unit is killed in battle, it cannot be used in upcoming battles. Should a player be defeated, it loses all the units in that formation (though the Hero is still available).
However, the same happens to the opponent in a node. If you lose a battle, all units you killed stay dead. However, injured (but not killed) units will regenerate at full health for the next battle.
==Strategy==
The player will usually be at an advantage by the time the more difficult battles arise.
However, as explained above sometimes a challenge occurs. Therefore it is important to take advantage of the system to your advantage:
*Scout the map in advance if you expect to have problematic opponents.
*Pick the bonuses you predict will best help you against those opponents.
*Adjust your formation to the opponents. Since you're the attacker, you're at advantage here.
*Use Mercenary units that your guild members dispatch. In each battle, you can use one mercenary. Even if it survives one battle you cannot reuse the same unit in your next battle that day, so chose wisely.
* Some Hero Lore missions require a specific unit to survive the 15th fight to make progress. You can replace it with another unit for the first 14.
If you see you are going to lose or the casualties are too big, it is generally recommended to restart the battle unless you are intentionally meaning to weaken the enemy. Indeed, this is a very popular strategy in two cases:
*You need to beat a very powerful opponent that you are unable to defeat in a single battle.
* You need to pass a particularly stringent quest (for example, specific Hero Lore quests).
=Chests=
Opening Chests immediately rewards the player with Artifact-related rewards, namely:
*
* Tokens
*Green or Blue (and rarely Purple) Artifacts pieces
=Treasure Map=
The Treasure Map is a feature similar to the original Heroes 3 game, in which the player is looking for a treasure.
This search requires accessing Obelisk Nodes - once you reach an Obelisk, a piece of the treasure map is revealed.
Once all, or almost all map pieces are revealed, an X will appear on the Campaign Map, and the treasure maps reset. This process then repeats ad-infinitum. Since you get 3 Obelisks on each map, it roughly takes 3 Campaign runs to dig the treasure.
Clicking on the X will reward the player with one (or rarely two) purple Artifact pieces, of either Armour of the Damned or Axe of Ferocity. This makes the two artifacts relatively easy to farm.
Note: Don't forget to dig for the treasure before resetting the map. If you do, you will lose the treasure. The system also warns you if this is the case.
=Power-Ups=
Each power-up node is randomly chosen out of 4 different types. Depending on the type, the player can choose one buff that will remain active through the campaign. Notice that resetting the map also removes these buffs.
Category 	Bonus 1 	Bonus 2 	Bonus 3*
First 	Unit Attack +30% 	Unit Health +30% 	Unit Damage +20%
Variation**	Ressurect fallen units	Unit Health +30% 	Unit Damage +20%
Second 	Unit ATK +200 	Unit Evasion +200 	Unit Damage Reduction +20%
Third 	Initial Mana +40 	Mana Regeneration +2	Spell Damage +50%
Fourth 	Hero INT +100 	Hero KNW +100 	Magic Resistance +50%
* Third bonus is selectable only after Duke Privilege level is reached.
** If the player lost a unit during the campaign, the last possible bonus is replaced with the possibility t resurrect a random unit and 2 their buff choices.
==Subscription VIP Bonus ==
By purchasing the 7 days subscription VIP bonus, at the beginning of the campaign you are also able to choose one of the following 3 buffs. As the regular power-up buffs, this will only last for the current campaign - but as long as the subscription remains active, the next campaign you will be able to choose out of the three once again.
*Unit Crit DMG +10%
*Unit ATK Speed +15%
*Unit DEF +5%
=Elf's Help=
After winning the 4th, 8th, and 14th battles an elf offers . Every pulls rewards randomly between 20 and 30. The common price is 20 for a pull or, during a specific event, 16 , with a 20% discount. The first pull of each elf is free. After getting Elf's Friend status in Viscount Privilege rank, each elf offers a second free pull.
It is generally recommended to avoid spending diamonds for Heaven Cast Stones as there are many other better sources for them in the game.
=Heavenly Sword =
The elf may find a Heavenly Sword on the Campaign map when resetting it. 
After clearing the nodes and reaching it, you get to choose between helping Angel or the Devil. If you choose to seal the Devil, the Angel will reward 88 or 166 immediately, along with another valuable item*. 
Choosing the Devil's reward is worth 88 or 166 and valuable items*, but has a high chance of triggering a battle with a powerful enemy (usually more powerful than the 15th battle enemy). If you win it, you will be rewarded 166 guaranteed and valuable items*. Also, there is a rare chance to get a Blue or Purple Artifacts.
*Among the valuable items that are rewarded: , and . 
You can retry the Devil battle as many times as you wish, as units do not die permanently after a lost battle, as in the Campaign itself. Although, the enemy will never change and you cannot use any mercenaries in the fight. If you cannot pass, you can choose to seal the Devil, instead.
Note: Some Hero Lore missions require fighting the army for the devil's reward. Don't forget to choose that specific hero before starting the fight. The event is too random to miss the opportunity.
=Campaign Store=