There are of course Japanese words for 'black', 'rose' and 'dragon', but the Yu-Gi-Oh monster 'Black Rose Dragon's Japanese name is actually in English.
They gave it a name using English words which can be first romanised into Japanese phonetics - 'Burakku Rōzu Doragon', and then into Japanese kana - 'ブラック・ローズ・ドラゴン'
You could say something like 'Kurorōzu no Ryu' but that isn't the name Black Rose Dragon would be known by in Japan.
トンボ(蜻蛉)Pronounced tonbo, it is usually written in katakana (the first reading in Japanese) but it does have kanji (the second more complicated reading).
kuro tatsu
koo-ro tah-t-soo
kuro taiyou 黒太陽
'kuroneko no ko.'
Kuroi is pronounced "koo-roe-ee."
Taiyou, you should pronounce it something like Ta e yoo
to
Kurikku
how do you pronounce it
tsuki
chiizu
maikaru
kore
kaze
Steevann
Nabigeetaa.