Roar of the Wurm [Friday Night Magic 2007] Anthologies providing you have the appropriate

providing you have the appropriate tools to carve them

Set: Planeshift Type: Instant Rarity: Rare Cost: {W} Kicker {W} (You may pay an additional {W} as you cast this spell

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you

When Ancestral Knowledge enters the battlefield

Tap all creatures

Roar of the Wurm [Friday Night Magic 2007] Anthologies providing you have the appropriateSet: Friday Night Magic 2007 Type: Sorcery Rarity: Rare Cost: {6}{G} Create a 6 6 green Wurm creature token. Flashback {3}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)