The only real downside is that it cant retrieve cards that were in your graveyard already
This heavily biases this list towards white and multicolor cards that include white, while red doesnt feature on the list at all (sorry, goblin players)
Oh and, pinging the opponents field to oblivion using All Will Be One is surprisingly not as janky as it should feel using this deck
Brave the Elements can finish the game by letting us crash through blockers with little to no regard for their presence, while Eerie Interlude not only retriggers all our enters-the-battlefield effects (which gets silly with multiple Thalias Lieutenant) but also lets us dodge Wrath of God, Supreme Verdict, and any other non-damage-based sweeper
It is still crazy that the trainers take the upper hand in the newer series, but they are also very beautiful and difficult to cock
Given how game-winningly nasty that ultimate, might I suggest Green for the counter adding and manipulation of Doubling Season et all