The Thrice-Buried
Festival colossus · The Resurrection Rites
They buried it in the old churchyard, and it came back. They burned it and buried the ashes, and it came back. They sealed it under the chapel floor. It is coming back for the third time, and it remembers every one of them.
Its mechanic: Three lives
It has to die three times, and every body has a different weakness. While its first third stands it breaks under Strength, the second under Agility, the last under Stamina: the more of your build is that stat, the harder you hit. A different kind of vampire carries each life.
Rare looks it drops
Everyone who strikes it has a chance at one piece whose look they haven't collected yet. Soulbound, and kept in the Wardrobe for good.