Dirty Deeds Done Dirt Cheap

Dirty Deeds Done Dirt Cheap (ダーティー・ディーズ・ダン・ダート・チープ), frequently shortened to D4C (ディー･フォー･シー) and translated back into Japanese as Itomo Tayasuku Okonawareru Egetsunai Kōi (いともたやすく行われるえげつない行為), is the Stand of Funny Valentine, featured in Steel Ball Run.

Serving to establish the existence of a sort of multiverse, D4C is uniquely powerful within the series.

Appearance
D4C has a humanoid form with large, upright horns that somewhat resemble the ears of a leporid; a masked mandible, and a light body, lined by an almost unbroken seam or trim. Under its brow, its eyes appear to emote a cold gaze.

After a late encounter with Gyro Zeppeli, along with Valentine, D4C's appearance changes drastically, losing a layer of its garb/armor/covering, including its horns. Even after Valentine recovers his health, D4C keeps its new form.

Personality
D4C expresses no particular personality. However, representing Valentine's spirit across all dimensions, passing between a number of his bodies and linking each to the "root world" of the Corpse, D4C's abilities lend it peculiar depth.

Abilities
D4C is among the most powerful Stands in existence (next to Enrico Pucci's Made in Heaven and Giorno Giovanna's Gold Experience Requiem). In its default form, it is a close-range Stand with above-average strength and speed. Although still exploring its full potential, Valentine is adept and creative with its powers.

Dimension Hop
Dirty Deeds Done Dirt Cheap allows different parallel worlds/dimensions to co-exist at the same time and/or in the same place. It also allows its user to visit these parallel worlds/dimensions and interact with them. Valentine travels by being closed between two objects, shown first by the use of a door against a wall. Liquid materials, such as water count as objects as well, and even dust or steam.

Valentine can also pull other people or items to other dimensions by forcing them between two objects. Valentine usually performs the latter by slamming a door on them while they are backed against a wall. However, as no two versions of the same person or thing can co-exist in the same dimension, one of them will have to go back into their own. If not, and if they get too close to one another, both will crumble, splitting into Menger sponges before obliteration. This rule does not apply to Valentine himself.

If Funny Valentine becomes injured, he can hop into another dimension and seemingly move his consciousness to the body of that dimension's Funny Valentine. Each dimension's new Valentine seems completely knowledgeable of the previous Valentine's situation or predicament if, for example, in the midst of a desperate battle. D4C might also have a mind of its own as it changes hosts, as a former Valentine host may not realize D4C has switched to a new Valentine. Hopping to a new Valentine, however, nullifies any wounds, making him nearly invincible, since the only way to truly defeat him is to kill him with one blow. Furthermore, he can summon any number of alternate selves to a target dimension in order to outnumber his opponents. These Valentines do not have D4C's of their own however, this Stand seemingly being wholly unique to the 'Root World', the single universe where the Corpse resides.

D4C Love Train
D4C Love Train (D4C -ラブトレイン-) is an ability given to Valentine by Lucy Steel's Ticket to Ride. In this form, Valentine becomes effectively invincible as all misfortune is deflected by a field generated from Lucy's body, leaving only good fortune. It apparently allows him to easily travel along the ground, shown when he pursues Johnny and Gyro under the train tracks, and across a grassy field. Due to Ticket to Ride's ability, objects continuously move closer to her, including trees, signs, and even the oceans. These shifts in position seem to favor Valentine.

Besides being invincible to attacks while within the gap in space, D4C can make even its most insignificant attacks fatal. Any wound would rise up the body and eventually reach a vital spot before dealing damage. A scratch or bite on the finger can become a scratch on the heart.

This ability can only be used a certain distance from Lucy, so if she is moved, then he is forcibly pulled with her. However, gravity is constant for Valentine when he travels between dimensions, making it a power capable of travelling with Valentine that can affect him inside the gap. This keeps him from breaking into pieces and becoming scattered across the different worlds. This power over gravity seems to be utilized by Gyro and Johnny when using the Super Spin.

Trivia

 * Its appearance may refer to the term "going down the rabbit hole", from the tale Alice in Wonderland.
 * D4C is the only Stand so far belonging to a primary antagonist whose power does not directly affect time, instead controlling space (though his original ability could be considered to deal with alternate timelines).
 * In the English localization of All-Star Battle, D4C is only referred to by the shorthand D4C, whilst the full phrase "Dirty Deeds Done Dirt Cheap" is generally changed to a synonym phrase ("Time to perform some dishonest acts at a fair and reasonable price!") The JoJo Glossary seemingly mocks this change by claiming that "No one knows what this mysterious abbreviation means."

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