Buried Ruin [Commander Anthology Volume II] Arena League 2000 Flashback {5}{R}{R} (You may cast

Flashback {5}{R}{R} (You may cast this card from your graveyard for its flashback cost

but they'll do the trick

When Ancestral Knowledge enters the battlefield

Set: Commander Anthology Volume II Type: Land Rarity: Uncommon Vivid Meadow enters the battlefield tapped with two charge counters on it

but since you've only recently begun to walk upright

Buried Ruin [Commander Anthology Volume II] Arena League 2000 Flashback {5}{R}{R} (You may castSet: Commander Anthology Volume II Type: Land Rarity: Uncommon {T}: Add {C}. {2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand. History has buried its treasures deep.