What is your favorite RGM? Which previous ones do you miss most?

There have been alot of Rotating Game Modes over the years! Which are your favorites that are still in rotations, and which are ones you want to come back?

For me URF is always my favorite, but If we could bring back any I would definitely choose  Ascension! 

 Ascension
 Legend of the Poro King
 Nexus Siege
 All Random Ultra Rapid Fire
 Hunt of the Blood Moon
 One for All
 Dark Star: Singularity
 Doom Bots of Doom
 Definitely Not Dominion
 Hexakill: Twisted Treeline
 Invasion
 Ultra Rapid Fire
 Hexakill
All Random Summoner's Rift
 OVERCHARGE
 Nemesis Draft
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