Mask of Wizened Whiskers

When this defends, put a card with combo from your graveyard on the bottom of your deck.

Blade Break

Rulings

From the Part the Mistveil release notes

“When this defends” is an event-based trigger. Mask of Wizened Whiskers will trigger at the time it becomes a defending card (i.e. defends the attack) or when it is added as a defending card to the chain link by an effect.

Keyword notes

Bladebreak - Equipment that are fragile and break after being used to defend. If you defend with a card with Blade Break, destroy it when the combat chain closes.

When you defend with a card it remains on the combat chain until the chain closes, therefore you cannot defend with an equipment multiple times on the same combat chain.
When this card is destroyed, it is sent to your graveyard.
The ability becomes a layer on the chain when the combat chain closes.
The Blade Break ability becomes a layer on the chain when the combat chain closes.
The ability goes on the stack when the combat chain closes.

All keywords

ClassNinja

TypeEquipment

SubtypesHead

Defense1

KeywordsBlade Break

SetsLGS, MST, ZEN