Apophis

Appearance
Apophi are enormous Grimm that resemble King Cobras. Like all Grimm, they are jet-black in color with a Grimm "mask" and four red eyes. They also have bone-white armor pieces below their bottom jaw that fold over the bottom part of the head to be used as means of burrowing or breaking through walls. Their tails are tipped with a bone-white spear-point to be used as a weapon.

Abilities
Apophi are able to burrow at high speeds by extending the pieces of bone under the bottom part of their jaws that acts as a shovel to which they can ram into the ground. They also use this as a battering ram against walls as seen in what happened to Topazu's village. Their tails are tipped with a spear-point that can be used as a weapon

Behavior
Apophi are somewhat solitary creatures (at least with other Apophi). If they are in contact with other Apophi, they will fight to the death. However, they do side along with other Grimm and can be used as heavy soldiers.

Additional Notes

 * Apophi are (so far) the only Grimm that have been known to attack other members of their kind.
 * In addition to Dust, the only thing that can hurt an Apophis is another Apophis.
 * The Apophis is the longest Grimm ever recorded in size.

Trivia

 * Apophis is the name of a monster of Egyptian mythology that would constantly do battle with the sun god Ra.