Ancestral Knowledge [Weatherlight] HER029 you can Special Summon 1

you can Special Summon 1 "Skull Flame" from your Graveyard

If another monster(s) is Normal or Special Summoned while you control this card: Send that monster(s) to the GY during the End Phase of this turn

Discard 1 card from your hand to select and destroy 1 face-up monster on the field with an original ATK that is less than the ATK of this card

If it's your second weapon attack this turn

Set: Sword & Shield: Brilliant Stars Type: Darkness Rarity: Secret Rare Retreat cost: Colorless

Ancestral Knowledge [Weatherlight] HER029 you can Special Summon 1Set: 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