For Book of Hours players, this guide is about upgrading soul card is a pain and must be thoughtfully planned.
Upgraders
To upgrade: Matching skill (associated with wisdom branch) + 2 Soul card
WARNING: Both must be accepted by the upgrader.
WARNING 2: The skill can only be used ONCE (presence of an “Attuned to” icon)
Practic Garden Dummy (Practice Garden)
Evolve via Illumination
Accepts: Edge, Scale, Heart, Winter
Telescope (Watchman’s Tower)
Evolve via Horomachistry
Accepts: Rose, Sky
Instrument: Quivering Double Bass (Mazarine Room)
Evolve via Birdsong
Accepts: Sky, Grail
Instrument: Hallowed Drum (Mazarine Room)
Evolve via Preservation
Accepts: Heart, Sky
Shrine: St Januarius(Atrium)
Evolve via Nyctodromy
Accepts: Rose, Sky, Heart, Knock
Shrine: Madrugad (Glorious Stair)
Evolve via Ithastry
Aspects: Sky, Winter, Forge
Solar Altar (Nave of Church)
Evolve via Hushery(white skull)
Accepts: Sky, Lantern, Winter
Practice Equipment (Duelling Hall)
Evolve via Illumination
Accepts: Edge, Scale, Lantern, Heart
Mirrors (Hall of Division)
Evolve via Nyctodromy
Accepts: Winter, Lantern
Instrument: Sunset Harp (Windlit Gallery)
Evolve via Birdsong
Aspects: Sky, Moon
Shrine: The Watchman (Radiant Stair)
Evolve via Illumination
Aspects: Rose, Sky, Lantern
Loggia Prospect (Gullscry Loggia)
Evolve via Hushery
Aspects: Moon, Rose