What type of card is Mark Ritual?

Q: What type of card is Mark Ritual?

Mark Ritual is an Instant. Its oracle text reads: "Add {B}{B}{B}. If this card is signed by someone who has ever designed a Magic card, treat all black mana symbols on this card as red mana symbols. (To be respectful of the color pie.)"

Mark Ritual

Instant

Add .

If this card is signed by someone who has ever designed a Magic card, treat all black mana symbols on this card as red mana symbols. (To be respectful of the color pie.)

Set Unknown Event

Rarity Common

Mana Value 2

Collector # CB12

Scryfall