Sentinel

Sentinels are monsters mainly found in late-game ruins such as laboratories and other high-tech locations. Sentinels drop some highly valuable loot, like other creatures of their level.

Spawning
Sentinels appear in ruins the player visits during late-game missions:, , and.

Sentinels also spawn on Floors 61-89 of the Deepest Ruin.

Behavior and tactics
Sentinels are fairly fast fighters, and may be lightly compared to Lost Variants, because they use evasive maneuvers. It is advisable, due to their speed and damage output, that the Builder be on their toes around this creature.

They have two main attacks, and other moves they can make use of.
 * Firstly is a swipe with both of their weapons at once. This attack is heralded by them swinging their batons simultaneously, rapidly. This attack can hit for rather high damage.
 * Secondly, they dodge rapidly to the side, two to three times, before swiping twice, and following up with their first attack. The entire time, they will be moving towards the Builder.
 * They also use the aforementioned dodges to throw the Builder off when attacking. They are not above using this tactic multiple times in quick succession, and it can cause the Builder's attacks to miss fairly easily.