Once the roster had become larger, their additions to the rotation were delayed to the week after their release.

Historically, champions were added into the rotation upon their release.

For some of these removed champions, they also were removed from special sale cycles.

Poppy, Sion, Twitch, Evelynn and Karma had this occur prior to their reworks.

Some had potential reworks incoming, thus were removed before their rework.

Some were already available in promotional materials, such as Tristana and Alistar.Some had a severe case of 'balancing reasons,' Yorick being one such example.For different reasons some champions were not included in the cycle for a longer period of time:.Poppy and Udyr are the only two champions to go on the free champion rotation the same day they were released.

Sometimes, champions were added to the rotation due to special events or to compensate for champions of the rotation that had been temporarily disabled.

The rotation was shifted one day forward to be on Tuesday, September 7th, which caused the week's rotation to be short as rotation shifts resumed normally the following week. One such case was Labor Day weekend of Season 1 (2010), during its 9th week.Riot has occasionally shifted the rotation date to avoid rotating on US holidays.

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