The die is cast

Condition: clear Quest:_Rainy_Days_Never_Stay

Location: Talk to Yagiya at Nakano Campsite to teleport to Shinagawa Catacomb of the Templar Knights (Alternate).

Experience: None

Guide:

Talk to Gryphon NPC in Shinagawa Catacomb of the Templar Knights (Alternate).

Go to the door which opened to for Diana fight.

Diana first fight

Barong will respawn infinitely but don't worry, kill one and you will get a repel buff. Go to Diana and let her hit you once to reflect her own attack then kill another Barong, repeat until she's dead(or use Makarakarn). Leave and enter again, talk with Gryphon and go to Diana for a second fight without gimmick.

Abraxas first fight

Talk with Gryphon to open the other door. Go for it for Abraxas Fight. Kill each group of demons once until Efreets spawn, kill one Efreet and then you can focus on killing Abraxas. Leave, enter again, talk with Gryphon and go to Abraxas for a second fight without gimmick.

Black Maria first fight

Talk with Gryphon to teleport to Black Maria area. Defeat Flamies ⇒ Aquans ⇒ Earthies (leave Aeros alive or they will all respawn again) in this order or Black Maria will be invincible. Defeat her and talk to her to finish the quest.

After beat her you can teleport to this area and repeat the fights anytime. Black Maria fight will have different enemies. If you defeat Black Maria before any Wil o'Wisp suicide or be killed, you get Black Maria plugin.