Thaddius druid?

I have stumbled across this deck quite a few times now, but i can not get my grips around what the point with it is realy. Every time it have been the same thing, Thaddius comes down, several cards are played, sometimes a extra Thaddius apear or what so ever. But when Thaddius is removed the same or the next turn the druid concedes emidiatly as it is cleared. This can not be very efficient since almost all decks can clear at least once. And if one clear is enough how does it even win? Or does it target something specific that i do not play perhaps. At the moment i play a homebrew of “Reno dragon druid” and “Undead druid”.