Its name is a reference to the 1962 novelty song "Monster Mash". It also references how it is a monster trick.
- Class: Hearty
- Tribes: Dancing Monster Trick
- Ability: All Zombies get +2/+2.
- Set - Rarity: Premium - Rare
Zombies never feel more alive than when they're dancing.
- Set - Rarity change: Basic - Uncommon → Premium - Rare
Since it boosts all zombies on the field, make sure you have as many zombies on the field to maximize the benefit from this trick. Also, this trick is extremely useful for every Hearty deck, since it is an effective way to boost zombies' stats en masse. However, this trick is expensive, so you should prepare cheaper boosting cards as well, or try to get more brains to play it earlier, primarily as Rustbolt. But even then, it is generally outclassed by Primeval Yeti as Evolving him results in a 6/6 zombie on top of the boost Monster Mash would give.
Just like all boosting tricks, you really can't counter this. However, you can predict it. If your opponent does nothing on the 5th turn with a field full of zombies, you can expect Monster Mash to be played. In this case, try to Bounce, Freeze, or destroy zombies beforehand so that fewer zombies that can be boosted. If this cannot be done, you can play Doom-Shroom should most zombies go over 4 if you are playing as a Guardian hero, though you need to be careful that your plants do not go over 4 as well. You can also use a rush deck to pressure your opponent into not using this due to its high cost.