Ancestral Knowledge [Weatherlight] XY33 During either player's Battle Phase

During either player's Battle Phase (Quick Effect): You can target 1 "Windwitch" monster you control

discard 1 "lswarm" monster

• Reduce this card's Level by 1

Set: Hidden Arsenal 5: Steelswarm Invasion Card type: Normal Trap Rarity: Super Rare Attack: 0 Defense: 0 Return 1 face-up Tribute Summoned "Steelswarm" monster you control to the hand to target 1 card your opponent controls

destroy 1 Spell or Trap Card at the end of the Battle Phase if you control another "roid" monster

Ancestral Knowledge [Weatherlight] XY33 During either player's Battle PhaseSet: 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