The Wanderer is the weakest of these three, since her static ability does little against nonred decks (and she can still be dealt noncombat damage) and her activated ability might miss entirely
But I think it's more helpful, ultimately, to show you how I think
Speaking of surveil: since Golbez is so good at it and hes only a 2-drop so hell consistently be on the battlefield, I added a couple ways to take advantage of surveil specifically: we mentioned the Tail but theres also Mirko, Obsessive Theorist which works great as a growing threat that reanimates, Matoya, Archon Elder turns all that surveil into draw, and Eye of Duskmantle lets us cast whatever we surveil with life instead of mana
You can (and should!) help each other out by casting spells on one another, but you don't share resources, so you can't tap someone else's land for mana or cast spells from their hand
I can still remember the first time I played Final Fantasy 7