High Tide

Instant    (CMC:1)

Until end of turn, whenever a player taps an Island for mana, that player adds to his or her mana pool (in addition to the mana the land produces).

"May Svyelun and her tides favor you."

35 ME1 • ENAnson Maddocks

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Legal in: Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

High Tide {U} Instant Until end of turn, whenever a player taps an Island for mana, that player adds {U} to his or her mana pool (in addition to the mana the land produces).

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3/1/2010
The delayed triggered ability triggers and produces  any time a land with the land-type Island is tapped for mana, even if that land has other types or the mana for which it was tapped is another color. For example, if you tap a Breeding Pool for , High Tide will give you an extra .
3/1/2010
The effect applies even if the Island in question entered the battlefield after High Tide resolved.

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