Ancestral Knowledge [Weatherlight] Lightning [x2] Set: Best of Promos Type:

Set: Best of Promos Type: Lightning Rarity: Promo Retreat cost: Colorless

Set: Retro Pack 2 Card type: Trap Card Rarity: Secret Rare During your opponent’s turn: Target 1 face-up monster your opponent controls whose ATK is less than or equal to their LP

Set: Diamond & Pearl: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless

When this card is Special Summoned this way

if you offer 1 monster on your side of the field as a Tribute

Ancestral Knowledge [Weatherlight] Lightning [x2] Set: Best of Promos Type:Set: 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