What are the items that go in the slot next to the spell?

Twice I've prayed at a statue and received an item that went into the blank slot next to my spell. It only lasts for that run, and I can't find any way to see what it does. What all items are available, and what do they do?

So far I've found:

• Hermes Boots
• Helios ?????
• Calypso's Compass
• Hyperion's Ring

Solution 1:

Hermes Boots

Allows you to walk on spikes.

Charon's Obol

Next time you can enter castle for free.

Hyperion Ring

Gives you an extra life. When you die you come back to life with 25% HP health.

Hedgehog's Curse

You drop coins when hurt, a reference to Sonic the Hedgehog.

Calypso's Compass

Compass appears at the top of the screen, pointing to a hidden location. The location is a hidden door that has chests inside.

Nerd Glasses

• Corrects Near/far-sightedness
• Makes you see invisble items
• Cures color blindness
• Removes effect of vertigo and nostalgic traits
• Allows you to see the winning chest in the 3-chest gamble game

Helios' Blessing

Much greater chance and quantity of gold dropping from enemies (Does not affect chests.)

Found these on the wiki, I'll be adding more of them once i find them myself or see people talk about them on forums.