Cymbubbly

Cymbubbly is a gem premium plant in Plants vs. Zombies 2. It is tied to the Festavius Piñata Party event, and costs 100 gems. It does no damage, and affects plants in a 3x3 area around it. When a plant near it vanquishes a zombie, it will gain +10% NDS of damage for 10 seconds. If the plant has already gain three boosts, however, it will return to normal stats and be inactive for four seconds.

Origins
Cymbubbly is based on a cymbidium, an evergreen, and bubbly (also known as champagne), an alcoholic drink commonly drank on New Years' Eve to celebrate.

Plant Food
When fed Plant Food, it will expand its range to 5x5 for 20 seconds, and give plants +15% NDS of damage instead of +10%.

Strategy
Cymbubbly, when with the right plants, can be very powerful. However, some plants will not benefit from it, and instead become less effective. Use this plant with single-target plants such as Bonk Choy, which will benefit from the damage boost but will not kill too many zombies. Primal Peashooter is also good to use with it, as it will spread the damage among multiple zombies. However, do not use this plant with AoE plants like Snapdragon, as they kill many zombies at once and will be asleep most of the time. If all the plants in a 3x3 area have gotten three buffs, then dig up the plant and plant a different one somewhere else.

Cymbubbly is very weak aganst Arcade Zombie during its jam, as the large quantity of killed zombies will make plants keep falling asleep. If the jam starts playing, dig this plant up immediately.

Trivia

 * The fact that plants get more damage after killing zombies is a reference to the fact that alcohol makes people more violent.
 * `Similarly, the fact that plants fall asleep after three boosts is a reference to a person falling asleep from alcohol.
 * Its ability loosely resembles Party variants from Plants vs. Zombies: Garden Warfare 2.