Shadowverse

Is the flood serpent really that overpowered? I don't see much of it, and even Haven and runes, which have become quite bad according to the stats.

Well, apparently so, although I haven't seen the serpent in action myself. Almost all the vampires I encounter are just standard aggro. But if it comes out on turn 6, as Locken said, then who can clear it – Haven with Themis Decree, or another vampire with Revelation, and even then, only with Vengeance.

Added 2 minutes later
It's decent in Battlegrounds, I've taken it a couple of times. But even then, Sadonoch is better. So yeah, it's useless. It's just sitting in my collection, and I don't want to disenchant it.

Added 53 seconds later
Every time you disenchant a Beast Dominator, one Revan somewhere is sad.