Dragon Tooth Warriors

Familiars made from dragon teeth.
The teeth are planted in the ground, where they become disposable soldiers imbued with the magical energy of dragons and knowledge from the earth.
Going by sprites it seems that there are three types, and they’re all lovely.
A nostalgic existence for those experienced with tabletop role-playing games. They’re actually very strong, and if a group of level five adventurers picks a fight with them they’re in for a rude awakening.

Fate/side material: Fate Encyclopedia

An army of small-fry who fight using pure numbers. Originally, making warriors using dragon teeth is a form of magecraft that comes from Greece, but a magus of Semiramis’ level is able to use it of her region of origin or personal style of magecraft. This time, they were used as rank-and-file soldiers to defend the Hanging Gardens, with even flying types appearing, but sadly, they are still small-fry… As such, they were easily blown apart with one blow of Astolfo’s magic flute.

Fate/Apocrypha material: Fate/Apocrypha Encylopedia