Anomalous Model Ruin Grader

anomalous model ruin grader boss icon genshin impact wiki guide 150px
Location Event: Shadow of the Ancients
Element Physical
Boss Type Event Boss

Anomalous Model Ruin Grader is an event Boss in Genshin Impact. Bosses are special enemies that are typically stronger than your average enemies and elite enemies. They usually have their own location or arena within the game. Bosses provide better rewards than normal enemies, but you will need to spend a certain amount of Original Resin to claim them. There are some bosses that won't require you to spend resin, as you will encounter some of them through the Archon Quests. Event Bosses also won't require you to spend any resin to claim its rewards.

When fighting bosses, it is important to be prepared and smart in choosing the right characters for the fight, some bosses are immune to certain elemental reactions, and it would be a waste if you were to pick your main DPS character to have the same elemental strength as the boss.


An odd Ruin Grader that can be found lumbering amidst the thick fog that hangs over Tsurumi Island. It is significantly stronger than your average Ruin Grader.
For reasons unknown, it has appeared on this deserted island, along with the equally enigmatic ancient techniques that power it. Hosseini has a strong academic interest in this Ruin Grader and would like you to defeat it, all the better for his research to continue.


Where to Find Anomalous Model Ruin Grader

  • Event: Shadow of the Ancients


Anomalous Model Ruin Grader Rewards and Loot

Players have a chance to gain these items upon defeating this Boss enemy. Drop rates and items may vary. Player level and other factors may affect these results. 

  • n/a



Anomalous Model Ruin Grader Strategies

Strategy Writeup

The overall challenge is to charge all three spikes to 100%. Failing to do so quick enough will reap consequences in combat and may result in a challenge failure. 

Use electro characters to charge these spikes and keep the boss away from them 

During combat you may be given warnings that the boss has locked onto the spikes. You will urgently need to locate and target enemy weakpoints to keep it from destroying the spikes. Back to back attacks have the ability to stun the enemy for a short period. 

The most difficult part about this battle comes from the Boss's regeneration abilities. This battle is best completed as fast as possible. 



Recharge all Pursina's Spikes within the time-limit to cut the Anomalous Model Ruin Grader off from its power source and finally defeat it

The Pursina's Spikes will affect the operation of the Anomalous Model Ruin Grader and trigger counterattacks while they are charging. When 2 Pursina's Spikes have been activated the Anomalous Model Ruin Grader will gain an ATK Bonus. when 3 are activated the Boss will gain an additional DEF Bonus. 

Once Activated, the Animalous Model Ruin Grader will start attacking the Pursina's Spikes. At this time, its head- and leg-mounted cores. will be exposed. Attack them to stop the Ruin Grader's movements. 

Once it has taken a certain amount of damage or has been in operation for some time, the Anomalous Model Ruin Grader will enter a recharging state where it will attempt to absorb Electro energy from the Spikes to enhance itself

While enhanced, the Anomalous Model will not be paralyzed when its weak points are struck. Moreoever the Anomalous Mode's attacks can alert nearby opponents. Theese opponents will be attracted by the Pursina's Spikes. 

If you have not ut off the Anomalous Model Ruin Grader's power source, defeating it will trigger its self-repair mechanism, which will cause it to re-enter an active state. 

Attacks & Counters

Attack Counter
Phase 1
Melee Combo   Anomalous Model Ruin Grader does a combination of a sweep, stomp and a initiation of lasers. These moves do reveal enemy weakpoints so dash away from the melee attacks and be quick to approach once the weak spots are exposed. 
 Slam Anomalous Model Ruin Grader  uses both its arms to slam on the ground which results in a shock wave dealing AoE damage within the area of the slam.  
Double arm Sweep During this action, the boss extends its arms and sweeps the radius around him, causing damage to those in range. Stay back once the arms extend. 
 Orb Rain  Ruin Graded releases 2 sets of damaging orbs on the player. Dash away if possible
Combo Rush Another combo type attack where the ruin grader will do 3 combo melee punch attack sequence and end it with a slam and finish the attack with firing lasers. This attack can slightly follow the player. Players definitely have time to dodge the last later since this is a pause before the last fire. 
Stomp Lunge This attack takes a while to prepare. The boss takes a second to readjust its direction as it prepares tof this attack. Players can anticipate this attack usually since it is performed at a distance. The Boss will lift a leg, hold it there, rotate its entire body it before taking the huge step forward in attempt to stomp the player. When you notice the first action of this sequence. Try to gain as much distance awaywhile circling around. Keep running so the stomp has a higher chance of missing
Bulldoze The Ruin Grader claps its hands together and forms the blades of a bulldozer. It then moves that bulldozer part to the ground before charging forward. Run in a direction either left or right and away once these hands claps together. There will be about a second of delay before the Ruin Grader reaches the floor. 


Anomalous Model Ruin Grader Lore

Boss Lore & Story Goes here


Anomalous Model Ruin Grader Notes & Trivia

  • Anomalous Model Ruin Grader Boss Notes, & Trivia Go Here



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