If a friendly non-Angel Dies, Avacyn the Purifier deals three damage to all creatures and opponents
What's different in the bonus card is the text on the card, and it was exactly what players wanted

8.8%inclusion 1.5lift 1.69K decks 19.2K decks Heroic Sacrifice 8.7%inclusion 1.1lift 507 decks 5.80K decks Erode 8.6%inclusion 0.3lift 775 decks 9.01K decks Desynchronization 8.5%inclusion 0.6lift 694 decks 8.17K decks Negate 8.3%inclusion -0.2lift 680 decks 8.17K decks Inkshield 8.3%inclusion 0.0lift 415 decks 5K decks Dawn's Truce 7.6%inclusion 0.1lift 1.46K decks 19.2K decks School Daze 7.4%inclusion 1.5lift 583 decks 7.92K decks Mortify 7.2%inclusion -0.1lift 359 decks 5K decks Silkguard 7.0%inclusion 0.9lift 639 decks 9.16K decks Eladamri's Call 7.0%inclusion -0.1lift 638 decks 9.16K decks Rebuff the Wicked 6.8%inclusion 0.5lift 1.31K decks 19.2K decks Despark 6.8%inclusion -0.3lift 339 decks 5K decks Restoration Magic 6.7%inclusion 0.2lift 1.29K decks 19.2K decks Clever Concealment 6.5%inclusion 0.1lift 1.25K decks 19.2K decks Flare of Fortitude 6.4%inclusion 0.2lift 1.23K decks 19.2K decks Whoosh

It's interesting when you look back, that originally, the idea of two-in-one cards was seen as a novelty
Spider-Man, Peter Parker, Archangel of Thune, Light of Promise, Cleric Class, and Sunbond also go infinite with Casey Jones once you have Lifelink