When I originally reviewed Oath of the Gatewatch, I thought that the card had some potential, but I never would have predicted that it would become a cornerstone of Green decks in the format. So what makes this card so good?
While the general consensus is that Lifegain cards aren't very good, it turns out that in Standard Pauper they can prove to be quite important. Past cards like Lone Missionary and Sylvok Lifestaff have been surprise hits in the format, and it seems that Pulse of Murasa is following in that same tradition. In a similar vein, cards like Reclaim or Disentomb are pretty bad in most Limited and Constructed formats. But when you put these two effects together, you end up with something that somehow is greater than the sum of its parts.
Additionally, it must also be mentioned that this card is both reasonably costed and an Instant, making it easily slot into any Control archetype that has access to Green mana. Place this in a format that has above average removal, and where most decks are geared around winning the long game, you have a perfect environment for Pulse of Murasa to be at its best.
So are there any good ways to deal with this card? Unfortunately, at the moment the format lacks any method of dealing with opposing creatures once they are placed in the Graveyard. Therefore, your only real option is to directly counter the spell using permission spells like Negate. Alternatively, you can also use removal like Complete Disregard or Oblivion Strike to ensure that your opponent's best creatures never end up in the Graveyard in the first place.
What has your experience with this card been? Got any good strategies to deal with decks that utilize it? Let me know in the comments below.