It fills your graveyard while removing a creature for a handy two-for-one
You can find the Top 32 decklists for this event here
Casual Commander doesnt necessitate playing a Birds of Paradise on turn 1, but it does necessitate packing incidental graveyard hate
I wouldnt get excited by a 4-mana draw-three normally, but you dont need to worry about casting the cards until next turn, and getting a burst of free cards gives you enough of an advantage to push a close game in your favor
There's a decent package of aura action here so Sergeant reports to Siona, Captain of the Pyleas for support
Youve got Mufasa, Ruler of Pride Rock, which doubles as both an amazing character that can turn the tide of a game all on his own, as well as being a stunning alternate art card for collectors to chase after