Wailin' weeds are walking masses of tangled plant matter that are coloured dark magenta. Their main bodies seem to be made of mossy green material seen on their limbs, lips, and the tops of their heads, while their unkempt fronds give them the appearance of wearing long, flowing robes. The wailin' weeds, much like its variants, are performers of the monster world, using the crudely-carved wooden microphones in their hands to sing various songs, such as cursing their enemies into inaction or bringing fallen allies back to life, but the self-centered monsters also have a tendency to get distracted by the sound of their own voice. The foul magic coursing through their body allows them to sap tension when they strike enemies, as well. Starting with their appearances in the Monster: Joker series, the wailin' weeds became part of the undead family due to their original Japanese names.
Wailin' weed begin appearing in Version 2.0 of the game, now being members of the Undead family. They continue to sing Cursed Verses and now have the ability to cast Zing to revive their allies, rather than using Angel Song.
Wailin' weed appears as an A-rank monster of the undead family during the Dragon Quest Monsters: Joker event alongside Dr. Snapped on his banner. It can participate in the Ace of Spades' Battle Road as a party member. As of the latest update in the Japanese version, it can be scouted from any banner, including the Regular SP Scout.
Move +1/Stats Up Bang Res +25/Stats Up Resounding Howl Potency +5%/Stats Up Singer's Soul: Performs martial recovery of a major amount of HP for the user and raises Spell Res and Breath Res for 3 turns when HP drops to 50% or less, 1 time per battle Zap Res +25/Stats Up Resounding Howl Potency +5%/Stats Up Stun Success Rate +5%