Maelstrom Djinn — ruling 1

If Maelstrom Djinn turns face up and then is somehow turned face down, it will still have vanishing and time counters. The vanishing ability will continue to work as normal. If it’s turned face up again, it will get more time counters on it, but it will also get another copy of vanishing. Both abilities would trigger during its controller’s upkeep.

Maelstrom Djinn : règles, fonctionnement et interactions (MTG)

Maelstrom Djinn is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Flying Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.) When this creature is turned face up, put two time counters on it and it gains vanishing. (At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

How it works : Maelstrom Djinn

Original English text — Wizards of the Coast / Scryfall

#1May 1, 2007· Wizards of the Coast
If Maelstrom Djinn turns face up and then is somehow turned face down, it will still have vanishing and time counters. The vanishing ability will continue to work as normal. If it’s turned face up again, it will get more time counters on it, but it will also get another copy of vanishing. Both abilities would trigger during its controller’s upkeep.
No other card is named in this ruling.