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Ancient Sentinel

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AncientSentinelFull
Ancient Sentinel
Rank/Title Security Robot
Affiliation Ancient Civilization
Weapon Laser
Chemical Gas
Crushing Arm
Incinerating Arm
Spawnrate 3 - 8 days
(Levels 50 and above)
Mission requirements An Ancient Doom
Battle Icon LandEncounter ancientSentinel icon EncounterIcon AncientSentinel icon


Spoiler warning!
This article contains plot details pertaining to the main story.

OverviewEdit

The Ancient Sentinel is a reoccurring mega-boss encounter introduced in the 2.85 Patch for players who have defeated the Ancient Construct and are level 50 or more. It appears in the Ancient Ruins, after a brief dialogue between the characters.

The Ancient Sentinel is comprised of three different parts:

Each part has its own pool of health and armor, as well as unique set of attacks. Each part has an incredible amount of damage reduction against all damage types, and coupled with a devastating array of indirect line-of-fire attacks that can target multiple spaces of the battlefield; the Ancient Sentinel is truly a challenge, even for the most experienced armies.

The Ancient Sentinel has 2450 Stat-Armor-HP and both the Ranged Arm and the Melee Arm have 1400 Stat-Armor-HP. Altogether, the Ancient Sentinel has combined total of 5250Stat-Armor-HP. That is more than twice as much health as the Ancient Construct.

The Ancient Sentinel can be beaten by destroying only the Main Body but this will yield less Resource-SP SP and Resource-Gold Gold.

The spawnrate of the Ancient Sentinel is 3 to 8 days.

Battle Map & RewardsEdit

Number of Units allowed: 10
Excluded unit types: None
Environmental DoT: None
Ignorable: Melee Weapon System
Ranged Weapon System


BattleMapOutpostEnemy
Hero ancient robot 2 arm right front
Hero ancient robot 2 body
Hero ancient robot 2 arm left front
Reward Chance
Resource-Gold 10,000-25,000 Gold 100%
Resource-gear 20-35 Gears 100%
Resource-bars 25-30 Bars 100%
Resource-widget 2-5 Widgets 100%
Resource-laurels 2-5 Laurels 100%
Resource-chem 10-25 Chemical Vials 75%
Veh ancient fragmentClaw icon Melee Fragment 2%
Veh ancient fragmentBlaster icon Sentinel Fragment 2%

StrategyEdit

All three parts of the Ancient Sentinel have an unbelievable amount of damage reduction, so that a Rank 5 Tank Killer will only do about 150 damage, assuming all shots hit.  The Melee Weapon System can be stunned while the Ranged Weapon System can be frozen.  Freeze and stun suspectability changes between the two arms; you need to test it first before launching a full attack.

Fielding Soldiers could be a disadvantage since the Main Body and the Ranged Arm have attacks that have high armor piercing AND critical bonuses against infantry. The Melee arm has critical bonuses against Vehicles, and is ineffective against infantry.  Tanks tend to have more health and armor as well as better damage reduction to survive the Sentinel's onslaught. One working strategy is to use 2 Rank 6 Veterans, 2 Rank 6 Raider Recruits, or 2 Eagle Eyes (Equal defense and dodge but way less health) in the front line. The high dodge and defense of these units allow it to survive the attacks of the Sentinel as long as the Ranged Arm is out of action. This strategy also helps when there are no vehicles in the front row. It makes the melee arm unable to use the checker attack, making it nearly useless.

The Ranged arm can be frozen, which takes it out of action for a few turns as well as making it more susceptible to every damage type. Note that StatusEffect-frozen replaces its damage reduction with 125% susceptibility. Fielding a unit capable of StatusEffect-frozen paired with a high-rank Tank Killer can dispatch the Ranged Weapon System quickly. However, Tank Killers are not recommended for fighting the Ancient Sentinel as they die quickly. Also, it can be affected by the "Flammable" status effect, which replaces its damage resistance with a damage increase of 400%. Unfortunately, the only unit that causes this status effect is the Weapon Technician. After putting the Flammable status effect upon it, it can easily be taken out by a R4 Tank Killer.

The Melee arm can be stunned, and given that it has the lowest cooldowns on its attacks, stunning this arm can buy the player a turn to do some damage to the Sentinel or heal a critical unit.  Also, the Melee Arm's most devastating attack can only hit vehicles on the front line. If there is only infantry on the front line then the attack is negated.

The main portion of the Sentinel is immune to all current status effects, and has even more damage resistance against attacks than the Ranged arm or Melee arm. However, it has little resistance to the Legendary Boar's "Chilling Breath" attack, so fielding Legendary Boars would be a good idea, especially since they have a decent amount of health and armor.

Unit Stats/ProfilesEdit

StrategyEdit

Over the time that the sentinel has been relased players have found many different formations with how to beat this beast of a boss, but the most common ones include

Common non nano or Resource-nanopod strategy

Strategy for Resource-nanopod Users who do not have the mech or raptor

GalleryEdit

AnimationsEdit

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