That you can drop it and immediately start casting spells out of your graveyard is pretty exciting
CFV Deck Exporter 4.2 Export Cardfight
Luckily, its pretty common for there to be thirteen or more creatures spread across the table in Commander
Its an instant that brings the creature back at end step, too, meaning it can effectively be used to dodge removal and board wipes
This layers a new control effect on that creature, but doing so rarely has any visible effect
Card advantage is a strategic concept (rather than a specific game term) and a lot broader, and basically means having more cardboard than my opponents. For starters, any card that puts more cards in your hand is card advantage, even if it doesn't say draw. But card advantage also looks at what happens in other zones