Each counter receives a timestamp as it’s put on an object or player. If that object or player already has a counter of that kind on it, each counter of that kind receives a new timestamp identical to that of the new counter.
September 30, 2011 · Innistrad
After each effect is applied, the order of remaining effects is reevaluated and may change if an effect that has not yet been applied becomes dependent on or independent of one or more other effects that have not yet been applied.
June 17, 2011 · Commander 2011
After each effect is applied, the order of remaining effects is reevaluated and may change if
February 4, 2011 · Mirrodin Besieged
After each effect is applied, the order of remaining effects is reevaluated and may change if an effect that has not yet been applied becomes dependent on or independent of one or more other effects that have not yet been applied.