Sacrifice a creature: Add {C}{C}.

{T}: Add {C}{C}.

Destroy target permanent.

When this creature dies, destroy all creatures blocking or blocked by it. They can't be regenerated.

Flying {T}: Add one mana of any color.

Flying

Flying Whenever this creature deals damage to an opponent, that player discards a card at random.

This creature gets +1/+2 as long as you control a Forest.

{T}: Add {G}.

Flying

Enchant creature You control enchanted creature.

At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them. When there are no creatures on the battlefield, sacrifice this enchantment.

Counter target spell.

Lightning Bolt deals 3 damage to any target.

Exile target creature. Its controller gains life equal to its power.

{T}: Draw two cards, then discard three cards.

Whenever this land becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

{T}: Add {C}. {T}: This land deals 1 damage to target attacking creature. Activate only during the end of combat step.

{T}: Add {C}. {T}: Draw a card. Activate only if you have exactly seven cards in hand.

{T}: Add {C}. {1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land. {T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

{T}: Add {C}{C}{C}. Spend this mana only to cast artifact spells.

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land.

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.