Cursya

From the Super Mario Wiki

Super Paper Mario Enemy
Cursya

Max HP	1
Attack	1
Defense
Card Type	Common
Card Description	This nasty critter will slow you down. It's just so easy to get lost in those dreamy eyes.
Tattle	That's... a Cursya! This spiteful, evil monster curses everything it touches... Max HP is 1 and Attack is 1. This Cursya's curse slows you down temporarily... You should throw something at it or use an item... Jumping on it would be a bad idea...
List of Catch Cards 77 78 79

A Cursya is an enemy from the game Super Paper Mario. They resemble tall green blobs with eyes, and two flexing protrusions on both sides that appear to be hands. Switching to 3-D however, Cursyas are revealed to be made of thin, spinning disks. Touching one will result in the active character being cursed. The different types of Cursya each place a different curse on the heroes. The regular Cursya will make the player move slower.

They are first found in 2-4, moving slowly across a wide floor in Merlee's Basement. Its card can by obtained by falling off the front of the mansion's roof in 2-2. It is in a treasure chest located on the balcony.

Since they cannot be harmed directly, the player must attack from a distance using Bowser's Fire Breath, Boomer, Cudge, Barry, or an item.

Cursyas sometimes will drop a Poison Shroom when defeated.

[edit] Trivia

Piccolo can instantly remove any curse placed upon the characters.
Similar to Spinia, Cursya is a portmanteau of curse and you.
Also like Spinias, Cursyas are essentialy a stack of paper thin disks with eyes. However, The discs of a cursya sway free and are not attached like a Spinia.
Like Spinias, they are three dimensional enemies.

Cursyas also come in Dark varieties in every kind except the Back Cursya. Since all Cursyas look the same except for color, the Dark varieties make it impossible to tell which Cursya is which.