Interestingly, in the anime this card is a fusion of Yusei Fudo's two favorite cards, "Stardust Dragon" and "Junk Warrior". Its effect allows it to be treated as "Stardust Dragon" in a manner similar to the effect of "Junk Warrior", where it gets stronger based on cards already played. Its second effect is very defensive, reflecting Yusei's overall style of play.
Design-wise, it looks closer to a fusion of "Stardust Dragon" and "Gaia Knight, the Force of Earth", which has a similar art style to "Junk Warrior" and other monsters used by Yusei.
"Equiste" refers to an order of Roman warriors who fought on horseback. Since "Equiste" is actually a plural form of the singular "eques", a more accurate name might be "Dragoeques". However, the use of the plural word is likely a reference to the fact that "Drago-Equiste" is a Fusion Monster (also in Latin, the word "Eques" refers to Knight, "Equiste" means "Knights", so the translation of the name of this card is "Dragon Knight Dragon Knights").