Safe Haven — ruling 1

When creatures return to the battlefield, they are put onto the battlefield as if just cast. Creatures with X in the mana cost are treated as X is zero. Creatures which can pay costs when put onto the battlefield to determine abilities must have those costs paid at this time.

Safe Haven — ruling 2

Token creatures cease to exist when they leave the battlefield, so this effect just exiles them with no chance to bring them back like you can with cards.

Safe Haven — ruling 3

If changed to another land type, the creature cards are not lost but can’t be released until the land reverts to normal.

Safe Haven — ruling 4

When the creature leaves the battlefield any damage or “will be destroyed at some future time” effects are removed from the creature.

Safe Haven — ruling 5

Auras on creatures are put into the graveyard and counters on creatures are removed when the creatures are sent to the Haven.

Safe Haven — ruling 6

Creatures return to the control of their owners, regardless of who controls the Haven when it is sacrificed.

Safe Haven — ruling 7

All cards in the Haven stay there even if they cease to be creatures. When the Haven is sacrificed, the cards come back onto the battlefield whether or not they are creatures.

Safe Haven — ruling 8

Creatures return to the battlefield simultaneously.

Safe Haven : règles, fonctionnement et interactions (MTG)

Safe Haven 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

, : Exile target creature you control. At the beginning of your upkeep, you may sacrifice this land. If you do, return each card exiled with this land to the battlefield under its owner's control.

How it works : Safe Haven

Original English text — Wizards of the Coast / Scryfall

#1October 4, 2004· Wizards of the Coast
When creatures return to the battlefield, they are put onto the battlefield as if just cast. Creatures with X in the mana cost are treated as X is zero. Creatures which can pay costs when put onto the battlefield to determine abilities must have those costs paid at this time.
No other card is named in this ruling.
#2October 4, 2004· Wizards of the Coast
Token creatures cease to exist when they leave the battlefield, so this effect just exiles them with no chance to bring them back like you can with cards.
No other card is named in this ruling.
#3October 4, 2004· Wizards of the Coast
If changed to another land type, the creature cards are not lost but can’t be released until the land reverts to normal.
No other card is named in this ruling.
#4October 4, 2004· Wizards of the Coast
When the creature leaves the battlefield any damage or “will be destroyed at some future time” effects are removed from the creature.
No other card is named in this ruling.
#5October 4, 2004· Wizards of the Coast
Auras on creatures are put into the graveyard and counters on creatures are removed when the creatures are sent to the Haven.
No other card is named in this ruling.
#6October 4, 2004· Wizards of the Coast
Creatures return to the control of their owners, regardless of who controls the Haven when it is sacrificed.
No other card is named in this ruling.
#7October 4, 2004· Wizards of the Coast
All cards in the Haven stay there even if they cease to be creatures. When the Haven is sacrificed, the cards come back onto the battlefield whether or not they are creatures.
No other card is named in this ruling.
#8October 4, 2004· Wizards of the Coast
Creatures return to the battlefield simultaneously.
No other card is named in this ruling.