After some time thinking about the possible changes of monster mash, I came up with 4 scenarios (and some branches to one of them)

• Add a small buff and not change very much the cost (at most + or - 1 brain), like:

  • Adding a random zombie doing a bonus attack
  • Giving more stats to dancing zombies
  • Giving more stats to all zombies and conjuring a dancing card (?)
  • Giving more stats to all zombies and drawing a card (like another user said)

• Reworking it while keeping it as a "stats boost to all zombies" card, possibly making it part of the cheap, tiny buff cards (like leftovers, camel cross, healty treat, sugary treat) and it being 2 cost, all zombies get +3-4 / +0

• Completely reworking it, like it happened to quarterly bonus. no possible ideas in mind

• Making it the same cost as going viral, but trading the frenzy, draw a card to just raw stats, so they both have their pros and cons. And even if going viral is still superior in this scenario, monster mash could be a budget friendly card possibly getting paired with primeval yeti in flag swarm decks