Return 1 Spellcaster-type monster OR 1 Spell Card from your Graveyard to your hand
As far as your Side goes, this deck regrettably doesnt have as much space for non-engine as Id like
This thing is going to easily win a lot of Commander games, so get used to seeing it
Untap Targets There are a lot of great things youd want to untap with Gandalf, and this is what jumped out at me
This deck's weakness is incoming commander damage
Second, it has "Whenever another nontoken creature enters the battlefield under you control, it endures X, where X is the number of counters on this creature." As a bit of a refresher, endure is an ability from Tarkir: Dragonstorm which - when triggered - causes the controller of the creature which is enduring to make a choice: either put X +1/+1 counters on that creature (where X is the endure number), or create an X/X white Spirit creature token