Tidal Influence {2}{U}
Enchantment
Cast this spell only if no permanents named Tidal Influence are on the battlefield.
This enchantment enters with a tide counter on it.
At the beginning of your upkeep, put a tide counter on this enchantment.
As long as there is exactly one tide counter on this enchantment, all blue creatures get -2/-0.
As long as there are exactly three tide counters on this enchantment, all blue creatures get +2/+0.
Whenever there are four or more tide counters on this enchantment, remove all tide counters from it.
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Cards that do something similar expected a card that isn't here?
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Wilt-Leaf Liege 84%
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+1 more matching line
Obstinate Baloth 84%
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"If a spell or ability an opponent controls causes you to discard this card, put it onto the battlefield instead of putting it into your graveyard."
Nullhide Ferox 84%
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Loxodon Smiter 84%
$0.17#22828
"If a spell or ability an opponent controls causes you to discard this card, put it onto the battlefield instead of putting it into your graveyard."
Brothers Yamazaki 84%
$0.17#23410
"If there are exactly two permanents named this card on the battlefield, the "legend rule" doesn't apply to them."
As Foretold 83%
$1.68#1814
"At the beginning of your upkeep, put a time counter on this enchantment."
+1 more matching line
Ugin's Nexus 81%
$1.93#7112
"If this card would be put into a graveyard from the battlefield, instead exile it and take an extra turn after this one."
Eureka 80%
#17890
"Starting with you, each player may put a permanent card from their hand onto the battlefield. Repeat this process until no one puts a card onto the battlefield."