This place can hold many creatures. Now Daniel needs to select some magical creatures from the magical creature encyclopedia book that Envy gave him. He doesn't want to bring to life creatures such as mutated frogs or zombified unicorns, as those are off-limits. He still needs this place to be able to produce magical ingredients for the mage who has joined his organization.
Daniel takes out the book and carefully marks the creatures that he currently has in his mindscape and is ready to bring to life.
"Hmmm... Portal Rabbit, checked. Unicorn, checked. Pegasus, checked. Thunderbird, checked..." Daniel mutters as he continues checking the creatures that match the ones he has as cards in his mindscape.
The checking continues as Daniel reaches the section of rare creatures in the index.