What type of card is capital offense?

Q: What type of card is capital offense?

capital offense is an instant. Its oracle text reads: "target creature gets -x/-x until end of turn, where x is the number of times a capital letter appears in its rules text. (ignore reminder text and flavor text.) *part basket case, all lowercase.*"

capital offense

instant

target creature gets -x/-x until end of turn, where x is the number of times a capital letter appears in its rules text. (ignore reminder text and flavor text.)

*part basket case, all lowercase.*

Set Unstable

Rarity Common

Mana Value 4

Artist Matt Dixon

Collector # 52

Scryfall