Fascinating!

Isn't this basically strictly better than a basic land, though? Virtual normally functions as a sortof-drawback, but with the built in Crucible of Worlds this cycle have, it loses any drawback-ness and becomes a distinct benefit. I can dream of Traumatizeing myself, milling eight of these, and having my mana sorted out for the rest of the game.

I suppose. Coming in tapped makes it too weak. It's not a basic land though.

I'll tweak it

That's a reasonable way of toning down the play-from-exile power. But that's not actually the problem. The problem is that the ability still makes Virtual a benefit rather than a drawback, so this is still better than Plains.

How about something like "~ ETBs tapped unless you control another virtual permanent"?

(Supertypes are generally not capitalised: see "snow" on Balduvian Frostwaker or "basic" on Rampant Growth.)