Since massacre wurm is in play when he sacrifices the 3 creatures to exile massacre wurm. Would it not trigger massacre wurms ability 3 times when putting the exile ability on the stack? So shouldn't there be 5 losses of 2 life?
Either you thoughtsieze first turn or you thought-knot seer second turn not both. Urborg and eye give 2 black and a reduction of 2 generic. You have to have eye and temple to do second turn thought-knot.