Perennation is a six-man sorcery that lets you bring back a creature from your graveyard back to the battlefield with a hexproof and an indestructible counter, making it practically untouchable
Beast Whisperer and Soul of the Harvest are two perfect examples, which each effectively add Elvish Visionarys text box as a cast trigger to every creature in your deck
Nadu's ability is incredible, so long as you can create new creatures, you can constantly make use of it
Since you can fetch lands and search up lands at instant speed, you can do this on your opponents turns to set yourself up for a strong attack on your next turn
Not only does Valki exile Uro for the amount of time hes on the battlefield he can even turn into an Uro himself
By sacrificing an artifact creature, which is simple in token-heavy builds, you get to search your deck for any noncreature artifact and put it right onto the battlefield