This has to do with Scythe of the Wretched, an artifact equipment that gives the equipped creature +2/+2 and says that whenever a creature that is dealt damage by the creature equipped with this card is put into a graveyard, you can return it to the battlefield under your control
This guide will help give a quick explanation of what Commander is, and what to expect from each deck to help you pick the right oneassuming you dont grab all of them, that is
When you play this at a multiplayer table, you can skip ahead three or four turns very quickly
Leyline of Resonance can allow for some turn-2 wins in whats meant to be the weakest Constructed format in Magic
I included a photo with a zoomed-in view of the card within the oversized sleeve, inside of a top loader so you can see the spacing and dimensions up close
On top of that, cards like Momo, Friendly Flier offer great indirect support since most angels have flying, making it easier to reduce the cost of your first creature each turn