(If a player cast no spells during their own turn, sacrifice this festivity.)
When this festivity enters, each player puts a candidate counter on a creature they control.
Creatures with candidate counters can't attack.
At the beginning of each player's upkeep, that player may tap any number of untapped citizens they control and put that many +1/+1 counters on a creature they control with a candidate counter.
When this festivity leaves the battlefield, remove all counters from each creature with a candidate counter except those with the greatest or tied for the greatest power. Remove all candidate counters from all creatures.