Blood chalices, also known simply as Chalices were a set of identical puzzle objects obtained and used by Raziel in the puzzle to ascend Janos Audron's Retreat in Soul Reaver 2.
The Blood Chalices themselves were blue, white and golden goblet-like containers with two handles that were marked with arcane symbols. Once gained they significantly limited Raziel's abilities - preventing him from Climbing, Gliding, entering Combat, manipulating objects or DevouringSouls. If placed on the ground, the chalice would quickly return to its point of origin.[Soul Reaver 2][Soul Reaver 2/8][Soul Reaver 2 manual]
A Blood chalice on its pedestal
A Blood chalice on its pedestal
Raziel holding an empty chalice
Raziel filling an empty chalice from a full basin
Raziel tipping the blood back out
Raziel holding a filled chalice
Raziel moving the contents a filled chalice
Raziel using a chalice to fill an empty Blood basin
Bloodstone bridge activation
Bloodstone bridge activation
Bloodstone bridge activation
Completed Bloodstone bridge
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Raziel first encountered a Blood chalice shortly after entering the ground floor of Janos's retreat. As he entered the chamber, a Blood-filled basin was apparent in the center of the room, along with an empty Blood chalice on a small pedestal. Clearing the chamber of its hazards, Raziel was able to fill the chalice from the basin and move up to a higher level, where he poured the contents into a second empty basin, marked with arcane symbols. When this basin was filled it created a Bloodstone bridge which allowed Raziel to ascend to reach the inner sanctum of Janos's retreat. In the Inner Sanctum, Raziel would use Blood chalices on four occasions. With each, he found a full Blood basin and transported its contents using a chalice to an identified empty basin, spawning a Bloodstone bridge and enabling Raziel to ascend further, until he reached Janos's chamber.[Soul Reaver 2][Soul Reaver 2/8][Soul Reaver 2 strategy guide (Prima)]
Both the Blood chalices and their stands bear a subtle Fire symbol, which is found on the top of the stand or inside and on the base of the chalice itself. Blood basins also bear subtle fire symbols.[Soul Reaver 2]