HF Howler Core Development Materials A material used to break through weapons, ascend Resonators, and upgrade skills.

The Tacet Core of a powerful Howler. The fierce and untamed Frequency Energy continues to reverberate within it. Evolution is all about adapting to the environment. Who will emerge victorious from the ordeal of the devastating Waveworm Phenomenon?
Sources
Synthesis - Purification
Synthesis - Transposition
Drop: Howlers