When zombies approach it, it uses its attack, Doom: an extremely powerful gigantic explosion that deals 200 damage. However, the drawback to this is that the Doom-shroom will then hide and become vulnerable while it "recharges" for about 30 seconds. Its zombie counterpart is the Explody Bot.
Doom-shroom had a functionally identical variant in the original Garden Warfare called the Cariboom released during the Feastivus event.
A legendary variant was created and was available from Rux called the Perfume Shroom. Unlike the other legendary consumables, however, the Perfume Shroom is, like the Cariboom, a reskin of the default Doom-shroom. Its attack is called the Perfume.
CLOSE RANGE: EXPLOSIVE Doom-shrooms are extremely damaging but take time to regenerate.
Cariboom
Some say the Cariboom is an ancient reindeer plant. We think he's just wearing a hat.
Perfume Shroom
CLOSE RANGE: EXPLOSIVE This lovely smelling shroom is dolled up and ready to go!
Battle for Neighborville
Doom-Shroom
Explodes damaging zombies in proximity, but defenseless when regenerating.
Strategies
This should be planted near the garden, as many zombies will focus on it and may not notice the Doom-shroom. However, a drawback is that when it is about to detonate, it will make a loud and quite noticeable sound, which can alarm some zombies. When it detonates, it will be vulnerable for about 30 seconds, so you should protect it until it is ready to detonate again.
Doom-shroom is recommended to use in Night Maps. While it does not do much, its dark color will allow it to make it harder to see. This will surprise and kill any zombie that does not suspect a Doom-shroom to be in a flower pot.