The letter sounds of R and L are interchangeable in Japanese (since L doesn't exist, R is the closest sounding). So it's really just personal preference.
for Slayers to shine again in the world of anime it needs to be redone like Fullmetal Alchemist but i really love the classic version and i can't imagine a new version without amazing Megumi Hayashibara's voice 🥺🥺🥺
El Conjuro se llama Ragna Blade a veces mal traducido como Laguna Blade es un conjuro que hace invocación al poder de Lord of Nightmares. No es ni un hechizo de magia negra, ni magia divina, dado que el mismo Lord of Nightmares no es un shinzoku o mazoku.