Ancestral Knowledge [Weatherlight] Breakers of Shadow if this card attacked a

if this card attacked a face-down Defense Position monster: Destroy that monster

negate that face-up card's effect until the End Phase

the selected monster cannot attack or change its battle position

The controller of this card pays 800 Life Points during each of his/her Standby Phases (this is not optional)

Set: Shonen Jump Magazine Promos Card type: Effect Monster Rarity: Ultra Rare Attack: 2600 Defense: 1800 When a Beast-Type monster you control is destroyed and sent to the Graveyard

Ancestral Knowledge [Weatherlight] Breakers of Shadow if this card attacked aSet: Weatherlight Type: Enchantment Rarity: Rare Cost: {1}{U} Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Ancestral Knowledge enters the battlefield, look at the top ten cards of your library, then exile any number of them and put the rest back on top of your library in any order. When Ancestral Knowledge leaves the