Mana Web [Weatherlight] Guildpact When you do

When you do

then return it to the battlefield tapped under its owner's control

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

Set: Limited Edition Beta Type: Land — Swamp Forest Rare Cost: ({T}: Add {B} or {G}

Set: Mirrodin Type: Artifact Rare Cost: {X}{X} Chalice of the Void enters the battlefield with X charge counters on it

Mana Web [Weatherlight] Guildpact When you doSet: Weatherlight Type: Artifact Rare Cost: {3} Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.