gotcha wrote: Hmm, LB is good but is it broken? Too bad ...
LB is good and broken in a way (not PTO broken, but still broken)
- in combo with villein, it gives the player at least 3 pool, multiple times per game, that is a strong effect for one single card
- unlike The Coven, it stays with the player and cannot move around
If you compare LB to Pentex Subversion:
Pentex is considered a very strong master card (close to broken, probably). Comparing the pool cost is not relevant, since the direct effect of both cards are not comparable. However: Pentex is unique, can be removed (by any minion on the table) and you can prepare for it (like having support for your star vampire, play pentex yourself, sudden reversal). To get around LB you just need to have a stronger deck, it's like having to kill an extra prey without getting the VP or the 6 pool for it.
And remember that the LB ban is probably temporarily. If an answer is found (new card with comparable effect) it will be used instead, or LB will be errata'ed. PB chose to ban for now, because it is the solution that can be undone the easiest.