Stone Creatures

Stone Creatures are rock monsters which are from Ledgerdomain. come up from the earth thanks to magic. They are portrait as large grimlock-like creatures with Charmcaster's ones having runes in there stone skin, similar carvings to the ones on the Charms of Bezel. When activated, they glow bright pink and begin to fight for Charmcaster but are usually yelled at by Charmcaster if not doing precisely as she says. As shown in In Charm's Way, they are sentient being furious at Charmcaster for her abuse. Charmcaster's minions are sent to destroy Ben, Gwen and Kevin numerous times throughout the course of the show. Free ones can also use magic as seen by Ignatius.

Alien Force and Ultimate Alien
The Stone Creatures first appear in the episode In Charm's Way.

In the episode Where the Magic Happens, there were rock monsters like the ones in Alien Force and Ultimate Alien, but more blueish in color, and with no runes. These were controlled by Adwaita rather than Charmcaster and are some of the original inhabitants of Yawahtacsip. Here it is revealed that they can be natural creatures instead of simple homunculi, and that the rock monsters that Charmcaster is normally assisted by were freed by her (possibly when she escaped with Hex) and so they follow her willingly and are not controlled by her at all. The markings on Charmcaster's minions are likely runes inscribed as protective wards against Gwen's magic, while the smaller puppy-like rock creatures were likely either infant forms of these rock beings or simply animated clay as was previously believed before Alien Force and the Large Rock Beings as separate entities entirely.

They appeared again in Absolute Power Part 1 where Gwen called upon them to fight Kevin. The spell was Silicus Milez Sasitatio. They did a good job at first, but then they were defeated when Kevin absorbed their mana, causing them to crumble.

Ben 10 Alien Force

 * In Charm's Way (first re-appearance)
 * Time Heals

Ben 10 Ultimate Alien

 * Hit 'Em Where They Live (first re-appearance)
 * Where the Magic Happens
 * Absolute Power: Part 1 (Under Gwen's control)
 * The Enemy of My Frenemy
 * Couples Retreat

Trivia

 * When someone asked "Why hasn't the Ultimatrix tried to scan one of Charmcaster's stone creatures?", Dwayne McDuffie replied "Who said it hasn't?". This could mean that their DNA is in the Codon Stream and thus they are sapient species.
 * They seem to get mad at anyone, even their own master, when insulted. There was a perfect example of this in the episode In Charm's Way, when Charmcaster insulted them and made them let go of the pole they were holding onto. This caused the monsters and Charmcaster to get sucked up into the portal created by Gwen.
 * Gwen only summoned Charmcaster's Stone Creatures once.
 * Darkstar was also able to summon Stone Creatures, whom instead of being powered by purple mana they're powered by Darkstar's gold energy, and as a result have gold lines instead of purple.