The Ear-shrivelling Curse 

Effects: - Causes your opponent's ears to shrivel up.

Spell Type: - Defensive.

The Entrail-Expelling Curse

Effects: - Expels your opponent's entrails out of their body.

Spell Type: - Offensive.

The Floating eye Curse

Effects: - Conjures a large, floating eye to hover stationary over an area.

Spell Type: - Defensive.

The Head growing Curse

Effects: - Makes your opponent grow an extra head.

Spell Type: - Offensive.

The Jelly-Fingers Curse

Effects: - Makes your opponent's fingers become wobbly like jelly.

Spell Type: - Defensive.

The Laughing Curse

Effects: - Makes your opponent laugh uncontrollably. Can be cast on objects to spread via touching the object.

Spell Type: - Offensive. 

The Portrait Curse

Effects: - Traps your opponent in a portrait.

Spell Type: - Defensive.

The Sleepwalking Curse

Effects: - Puts your opponent into a deep sleep from which they might never wake, and causes them to walk around in their sleep.

Spell Type: - Offensive.

The Sponge-Knees Curse

Effects: - Causes your opponent's knees to become spongy, making it difficult for them to walk.

Spell Type: - Defensive.

The Statue curse

Effects: - Petrifies your opponent, transforming them into stone. This is an inanimate to animate transformation spell.

Spell Type: - Offensive.

I do not know the spell blocks of any of the curses in this chapter, but will appreciate help and information regarding them from anyone who already knows or gets to know anything about them. This is because you can make out that these spells can be very useful in duelling, and are helpful to know about, as they already exist and so that atleast you will know what it is if you or someone else gets hit by one of these, and knowledge of spells is very important in duelling and in the wizarding world in general.