In the Norse paganism, the goddess who holds the golden apples is Idunn, instead of Frigg.
This card's effect may refer to the Greek myth of the nymphAtalanta: she challenged her suitors to a running race, sure that nobody could defeat her. But Hippomenes, during the challenge, threw down the three Golden Apples, and Atalanta stopped running to pick them up, so he succeeded in winning. This card's effect works like the apples in the myth, because it stops your opponent's direct attack and gives yourself an advantage.
"Malus" is the Latin species name for "apple". It also means "evil" in Latin, which mirrors the Token's Japanese name.