Graydle

"Graydle" (グレイドル Gureidoru) is an archetype of WATER Aqua-Type monsters debuting in Dimension of Chaos.

Appearance
The artworks of "Graydle Impact" and "Graydle Parasite" suggest that the original monsters are liquid metallic alien slime creatures that arrived on Earth and parasitically possess other creatures. Furthermore, it seems that they can mold themselves, such as splitting in two as shown in "Graydle Split" or merging together to form chimera-like monsters, such as the Synchro Monster "Graydle Dragon".

The color scheme of the possessed creatures is based in the three main types of cards: Monster ("Graydle Eagle"), Trap ("Graydle Cobra") and Spell ("Graydle Alligator"). Furthermore, all of the Main Deck monsters' ATK and DEF sums 2000, so far.

Etymology
Although the specific origins of the name "Graydle" aren't clear, it could be a portmanteau of the words "Gray" and "Idol", or "Gray" and "Cradle". "Gray" or "Grays" is a term that is used to refer to a stereotypical small grey alien man.

Playing style
Fitting the archetype's "parasite" theme, the "possessed" "Graydle" monsters consist of equipping themselves to opponent monsters when destroyed by battle or by specific effects and taking control of them. The support cards so far either aid on using those effects, such as "Graydle Parasite" and "Graydle Impact", or help swarming "Graydle" monsters, such as "Graydle Split".

Other combos include Special Summoning "Graydle Cobra" with "Call of the Haunted" and using "Magic Planter" to draw 2 and then take control of an opponent's monster, then using "Release Restraint Wave" to destroy all of your opponent's set Spells and Traps.

Their boss monster, "Graydle Dragon" destroys cards your opponent controls up to the number of WATER monsters used for its Synchro Summon; also, if it end up being destroyed, you can revive another "Graydle" monster to either take control of an opponent's monster or to use it to Special Summon "Graydle Slime" and Synchro Summon another "Graydle Dragon".