He has an idea to improve your Royal Watering Can even more. When you accept the project, he gives you the list of Ingredients to gather.
When you come back with the Ingredients, Merlin tells you that he wants you to craft the enchantment yourself since you're now ready to become a wizard in your own right.
You gather the Ingredients and craft the enchantment yourself. Now it's time to see if it worked.
You improved your Royal Watering Can by yourself. Merlin will be thrilled to hear it.
Both Night Shards and Dream Shards can be obtained from clearing Night Thorns and from digging up the ground. Additionally, Dream Shards can be obtained from giving food to critters.
Find Wall-E after crafting the Purified Night Shards and give them to him.
Dialogue
player
WALL•E, do you think you could crush these Shards for me?
WALL•EEEEE!
Ta-daaaa!
player
Powder as dark as the night!
→ Thank you, WALL•E!
Whoopee!
Return to Merlin with the crushed shards.
Dialogue
Excellent, Player! Now, I have a challenge for you.
We've been working together some time now, and I think you're ready.
Ready... to become a wizard yourself!
→ Do I get a pointy hat?
All in good time. Now...
This is a book on how to enchant objects.
It's written in riddles, which any true wizard can decipher.
I'll give you just one hint -- you need the Ice Tear Seed.
It was hidden in the binding of the book. Here you are.
Merlin will explain that the riddles within his book must be deciphered.