Simulacrum—the spell’s creation can’t gain levels or regain expended spell slots (RAW). The creation is meant to be unable to regain use of any of its features that it expends (RAI).
Can a simulacrum regain sorcery points?
The simulacrum lacks the ability to learn or become more powerful, so it never increases its level or other abilities, nor can it regain expended spell slots. However, the Flexible Casting feature allows you to: transform unexpended sorcery points into one spell slot as a bonus action on your turn.
Can a simulacrum change spells?
The simulacrum would copy the spellbook using the same notation as the original so they would not be able to create a spellbook that the original could not read. So the short answer is, the simulacrum can cast rituals so long as they have the spellbook handy. They cannot change memorized spells ever.
Can you true polymorph a Simulacrum into yourself?
RAW: Yes, the Archmage can regain spell slots. It retains its alignment and personality. The simulacrum’s statistics are replaced by those of the Archmage it is true polymorphed into.
What does the simulacrum spell do to a creature?
The Simulacrum spell creates an illusion that’s considered a creature and on top has extra limitation. Those extra limitations do not disappear when a spell affect that creature, no matter what that creature becomes.
Can a polymorph function as a living creature?
In other words, it would still be susceptible to being dispelled. While polymorphed, however, the simulacrum would be able to function as a living creature in all respects (assuming you polymorphed it into a living creature), including recovering the hit points of its assumed form.
Can a clone be a true polymorph?
So long as the original creature is alive, the clone is nothing but an empty vessel. So while you could true polymorph an inert clone body into whatever you wanted, it would be functionally the same as polymorphing an inanimate object into whatever you wanted.