Tidal Influence

Enchantment, 2U (3)
Cast Tidal Influence only if no permanents named Tidal Influence are on the battlefield.

Tidal Influence enters the battlefield with a tide counter on it.

At the beginning of your upkeep, put a tide counter on Tidal Influence.

As long as there is exactly one tide counter on Tidal Influence, all blue creatures get -2/-0.

As long as there are exactly three tide counters on Tidal Influence, all blue creatures get +2/+0.

Whenever there are four tide counters on Tidal Influence, remove all tide counters from it.¹
Illus. Tom Wänerstrand

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: As soon as the number of counters on this card changes, so does the power of blue creatures.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (1/1)	Fallen Empires (Uncommon (U3))