You want to be good at navigating your opponent's removal and making use of your graveyard, so I consider this middle-of-the-road in terms of EDH power level
It's really fun to play and has a lot of interesting lines, thanks to the weird mashup of token synergies, aggro-beatdown potential, and sacrifice / aristocrats payoffs
This is better than Living Wish or Burning Wish or Golden Wish, because there is no limitation on what you can wish for
Getting rid of an annoying blocker can be key
Guardian Sunmare I really want to love Guardian Sunmare, but saddle 4s quite high
Sunbirds Invocation is a six-mana enchantment that reads: Whenever you cast a spell from your hand, reveal the top X cards of your library, where X is that spells mana value