Activate Yenna by paying ({2} magic symbol) and tapping it, creating a token copy of an Aura you control and a 1/1 Squirrel creature token, then untapping Yenna and causing you to scry 2.
Activate Ashnod's Altar by sacrificing the Squirrel, adding ({C} magic symbol) ({C} magic symbol) .
Activate Gatherer of Graces by sacrificing the Aura token, regenerating Gatherer of Graces.