4 Oct 2004
The controller of the dead creature chooses the new creature.
4 Oct 2004
A counter is placed on every player's upkeep, not just the controller's upkeep.
1 Aug 2005
When the enchanted creature leaves the battlefield, this card is placed into the graveyard as is normal for an Aura when it loses what it enchants. The triggered ability returns this card to the battlefield with no counters on it.
1 May 2006
In Two-Headed Giant, triggers only once per upkeep, not once for each player.