Gothitelle

Gothitelle's presence in DOU is defined primarily by its ability Shadow Tag, which grants it the niche of immediately trapping in both its foes, giving its partner the ability to either pick off important targets on the opposing side of the field or safely set up in the optimal board state locked in by Gothitelle. This support is enhanced by its great supportive movepool, prominently featuring Trick Room and Heal Pulse to aid further in its partner's setup and sweep. However, Gothitelle is brought down by its tendency to become a momentum sink against more offensive foes, as it's unable to hold its own and can be fairly easily overwhelmed. Additionally, its pure Psychic typing gives it key weaknesses to Dark-, Ghost-, and Bug-type attacks in exchange for a single useful resistance to Psychic-type attacks, enhancing its vulnerability to strong foes like Tyranitar, Aegislash, and Genesect.