Victor, Valgavoth's Seneschal

I initially read this as "Whenever an enchantment you control enters a room". Shortening "enters the battlefield" to "enters" was weird enough, but it's extra weird now that they're introducing something else that could conceivably be "entered" in the very next set.

While a WB enchantment Commander is cool, given that many Rooms are dual-color it's probably better to wait for a 3-color Commander, especially one in UR if you want to go all-in on a Room theme