That may so that for the game to work you have play it that way but It's not based in any logic at all.
It doesnt make any sense
By your reasoning then you can play 2 unique card if you just play it first as a development then turn it over.
The Rulebook page 7
If a player has a copy of a unique card in play, he cannot play, take control of, or put in to play (via a card effect) another copy of that card.
Mayby me last point/argument falls on "take control of"
The other problem we have with the card is Corbs text Put into play.
Can you explain this text for me as the idiot I am.
Edited by gertat