So does it actually sing?
Some lines from Jayce's new lore: >Something inside the crystal called to Jayce. No, more than that – it sang to him.
And then a bit later:
>Jayce’s eardrums nearly shattered from the booming baritone note that blasted from the shard.
The first thing I asked myself when I read the first line was, "Does it actually sing to him? He may be an inventor, but League's story is deeply rooted in the existence of magic. It's probable the crystal actually did sing to him." But a few lines later I was definitely convinced.
Side note: I bet Jayce could power a tank if Skarner's in the passenger seat.