Equip only to a "Lightsworn" monster. It gains 700 ATK. When this card is sent from your Deck to the Graveyard: You can target 1 "Lightsworn" monster you control; equip this card to that target.
These are all the Lightsworn monsters that can be equipped with Lightsworn Sabre.
Zane Lvl 40 (Gate)
KC Cup Nov 2018 1st Stage
Inglorius Bastion Event
New Week Campaign!
The White Dragon of Legend
Train Your Kuriboh! Campaign
PvP Best decks
King of Game decks [Nov 2018]
KC Cup: 1st Stage [Nov 2018]
Dragunity Synchro: deck recipe
Masked HERO: deck recipe
Blue-Eyes Cosmo Brain: deck recipe
Vampire: deck recipe
Amazoness: deck recipe
Gladiator Beasts: deck recipe
Geargia: Deck recipe [Jun 12 Updated]
Spellbook: deck recipe
Wall of Disruption | Deck and Rulings
Gozuki | Deck and Rulings
Destructotron | Decks and Ruling
Ancient Rules | Deck and Rulings
Floodgate Trap Hole | Decks and Ruling