One Toronto Gaming is a partnership formed by Great Canadian Gaming Corp. and Brookfield Business Partners to operate casino facilities in the Greater Toronto Canada area. They currently are operating the Casino Ajax, Great Blue Heron Casino and Woodbine Casino. They will also be operating the Pickering Casino that is not yet open but currently under construction. You can find more about One Toronto at https://onetoronto.com/about
They currently have 5 cards in their One Rewards that include a red Ruby, Silver, Gold, purple Prive and a black Elite level. The Elite level is by invitation only!
Here's scans of the ruby and gold levels with a picture from the website showing all 5 levels.