There was still a lot of controversy among the players and lists that were specifically built for the Seismitoad mirror match but nothing changed
The only big factor here is whether you have artifacts worth copying, but if you build your deck right that shouldnt be an issue
Thunderbreak Regent Thunderbreak Regent is an absolute nightmare for opponents who like targeting your creatures
While the Rat drop does benefit from being one of the biggest drops we've seen so far (thanks to four copies of Rat Colony, which are currently worth almost $8 each, making just the Rat Colonies worth the $40 cost of the drop), the value of the cards in the drop is high enough that even if you cut the drop in half, it would still be on par with most of the other Secret Lairs , from a value perspective
Abrupt Decay gives Golgari decks a reliable answer that always resolves
However, I think theres more merit to these sets now than just attempting divination through them