Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.

Target permanent becomes an artifact in addition to its other types until end of turn.

Draw a card.

Whenever a creature attacks, Caltrops deals 1 damage to it.

Change the text of target spell or permanent by replacing all instances of one color word with another or one basic land type with another until end of turn.

Draw a card.

Tap target artifact, creature, or land.

Draw a card at the beginning of the next turn's upkeep.

{T}: Add one mana of any color that a land an opponent controls could produce.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Choose one --

• Counter target spell if it's red.

• Destroy target permanent if it's red.

Untap target artifact, creature, or land.

Draw a card at the beginning of the next turn's upkeep.

Target land becomes the basic land type of your choice until end of turn.

Draw a card at the beginning of the next turn's upkeep.

You may tap or untap target artifact, creature, or land.

Draw a card at the beginning of the next turn's upkeep.

Suspend 3--{0} (Rather than cast this card from your hand, pay {0} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

{T}, Sacrifice Lotus Bloom: Add three mana of any one color.

As an additional cost to cast this spell, you may exile any number of blue cards from your hand. This spell costs {2} less to cast for each card exiled this way.

Up to X target creatures phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.)

Target land becomes the basic land type of your choice until end of turn.

Draw a card.

Return target creature to its owner's hand. Untap up to two lands.

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

Return two target creatures to their owners' hands.

Wizardcycling {2} ({2}, Discard this card: Search your library for a Wizard card, reveal it, put it into your hand, then shuffle.)

Choose one --

• Target nonsnow permanent becomes snow until end of turn.

• Target snow permanent isn't snow until end of turn.

Draw a card at the beginning of the next turn's upkeep.

You may tap or untap target artifact, creature, or land.

Draw a card.

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

{T}: Add {C}.

Metalcraft -- {T}: Add {C} for each Urza's land you control. Activate only if you control three or more artifacts.