Tahm's PBE lore is really dark and secretive...

There are many places in Runeterra. Wondrous places, and terrible places. But who holds these places? Is there one placeholder? How can one hold a place, truly? Is there a placeholder at all? None can say, but it would be a fool's errand to try to stop this inexorable placeholder.

Dont be excited, his lore is probably going to be something like:

''Tahm is a being that makes deals in the swamps. Who is he? Why does he do this? How did the creature known as The River King come to be? Only he knows.''

Yea I just saw that. When will he be available?

As it tends to when they hit the pbe. This isn't new, it's happened every time a new champ has been released to the pbe initially. The paragraph comes later and then entices angry mobs.