Charix

Charix, the Raging Isle is an leviathan crab, born from the ruins of the Tazeem Skyclave, from Zendikar.

When Iona destroyed the Tazeem Skyclave, huge chunks of it fell into the ocean. One particular piece of ruin, housing a powerful and forgotten kor artifact, landed on a clutch of crab eggs. The eggs were all crushed, except for one. That egg hatched and, denied normal food, gorged itself on the energy of the artifact. It grew larger and explored the surrounding ruins, finding new artifacts upon which to feed. When the Skyclaves rose once more, many of the Tazeem ruins emerged from the ocean. Its lifestyle and food supply interrupted, Charix has breached from the depths in search of sustenance.