a lot of the spectral cards are based on spiritual phenomena and are mostly fine, especially immolate but I feel like there's not enough, and could delve into more exotic effects.
Incense
Clears the enhancement and or edition off of 2 selected cards
Gives $5 per enhancement and or edition removed
-# Using Incense on a debuffed card also counts as removing an edition. Removing the debuffed effect and giving another +$5
Crucifix
Destroys 3 selected cards and fully clears 1 random card
Sacrifice
Adds a Perishable sticker to 1 selected Joker
+1 hand size
-# Perishable: Debuffed after 5 rounds
Paradox
Creates the last Spectral card used during this run
-# Using the Paradox on The Soul creates a paradox on life. Causing it to be eradicated so the rest of the universe may further live on. What force caused this is unknown, but is restless in it's continued protection.
-# In layman's terms, the Paradox destroys itself.
Coma
Debuffs all currently held cards permanently
+1 Joker slot
-1 hand size
-# Scales similarly to ectoplasm. -2 hand size, then -3, and so on.
Gravestone
Destroys 1 random card and creates 3 Stone cards each with a random seal or edition.
Ritual
Destroys first Joker of highest sell value
+1 hand
Afterlife
Adds an Eternal sticker to 1 selected Joker
-# Eternal: Cannot be sold or destroyed