Wall of Tombstones [Legends] Elemental Set: Beta Edition Type: Instant

Set: Beta Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one basic land type with another

Set: Gateway 2007 Type: Creature — Elf Druid Rarity: Rare Cost: {G} {T}: Add {G}

Set: Time Spiral Timeshifted Type: Instant Rare Cost: {B} Prevent all combat damage that would be dealt this turn

If you want to kill a lot of goblins

And as he sat

Wall of Tombstones [Legends] Elemental Set: Beta Edition Type: InstantSet: Legends Type: Creature Wall Rarity: Uncommon Cost: {1}{B} Defender (This creature can't attack.) At the beginning of your upkeep, change Wall of Tombstones's base toughness to 1 plus the number of creature cards in your graveyard. (This effect lasts indefinitely.)