La saga d'Urza

Polluted Mire enters the battlefield tapped. {T}: Add {B}. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {C}. {2}{R}, {T}: Shivan Gorge deals 1 damage to each opponent.

Drifting Meadow enters the battlefield tapped. {T}: Add {W}. Cycling {2} ({2}, Discard this card: Draw a card.)

Slippery Karst enters the battlefield tapped. {T}: Add {G}. Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {R}.)

({T}: Add {U}.)

{T}: Add {W} for each enchantment you control.

{T}: Add {C}. {T}, Sacrifice a creature: Add {B}{B}.

{T}: Add {U} for each artifact you control.

({T}: Add {G}.)

({T}: Add {R}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {W}.)

({T}: Add {W}.)

{T}: Add {G} for each creature you control.

({T}: Add {G}.)

({T}: Add {R}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {W}.)

({T}: Add {B}.)

({T}: Add {G}.)

{T}: Add {C}. Cycling {2} ({2}, Discard this card: Draw a card.)