Advanced format ruling
Elemental Mistress Doriado
Card effect (current official text)This card can only be Ritual Summoned with the Ritual Spell Card, "Doriado's Blessing". The Attribute of this card is also treated as WIND, WATER, FIRE, and EARTH while it is face-up on the field.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.