You can only control 1 "Noble Arms - Arfeudutyr". Equip only to a Warrior-Type monster. Once per turn: You can target 1 Set card your opponent controls; the equipped monster loses exactly 500 ATK, and if it does, destroy that target. (This ATK loss remains even if this card leaves the field or the monster becomes unaffected by card effects.) If this face-up card on the field is destroyed and sent to the Graveyard: You can target 1 Warrior-Type "Noble Knight" monster you control; equip this card to that target. You can only use this effect of "Noble Arms - Arfeudutyr" once per turn.
Reduces the equipped monster’s attack every time you use the destruction effect.
You can equip this card to an opponent’s Warrior-type monster and then reduce his attack to destroy a Set card your opponent controls.
Use these cards to search out Noble Arms cards from your deck. Noble Knight Bedwyr sends Noble Arms to the graveyard when he is summoned, you can then equip that Noble Arms card from your graveyard to a Noble Knight monster with Bedwyr’s effect.
Reducing Amazoness Swordswoman's ATK = more damage to your opponent and thus no drawback for using Arfeudutyr. Parallel Twister is gennerally a card useful for Noble Knight Decks since if you sacrifice a Noble Arms, it comes right back. Together with Arfeudutyr it can effectively get rid of many spell/trap cards.