Minecraft Dungeons:Elder Guardian

Elder Guardians are hostile mobs and a stronger variant of the Guardian that appears in the  Hidden Depths DLC for Minecraft Dungeons. It is a mini-boss mob in the DLC.

Behavior
The Elder Guardian has three different attacks:

Guardian Beam
The guardian is capable of shooting beams at the player, which deal constant damage.

Summon Allies
The elder guardian can also summon guardians.

Head Smash
If the player is close, the elder guardian will lunge at them, dealing a lot of damage.