Play this ability as an interrupt. Sacrifice Safe Haven to return all creatures it has removed from the game directly into play under their owners' control as though they were just summoned. Use this ability only during your upkeep. The first has been corrected to not be played as an interrupt. It is just an instant.
Creatures return to play simultaneously.
If a Clone tries to come into play and there is no creature to copy, it stays removed from the game and does not enter play. A Clone may not copy another creature which is entering play at the same time it is. See Rule G.31.4. See Rule Z.1.3. Enchantments on creatures on destroyed and counters on creatures are removed when the creatures are sent to the Haven.