Our deck has a strong Sacrifice subtheme: we've got plenty of artifacts that want to be sacrificed for value like Myr Retriever and Ichor Wellspring and sacrifice outlets like Chronomancer to draw cards or Scrapyard Recombiner to tutor up constructs
Notably, this ability says 'all zombies', meaning if there's another zombie deck at the table, you can activate this ability on that player's turn and forge an undead alliance against the table
You usually see this played with cards that care about cheating big creatures into play, or in Commander decks that go wide
Introduced in the Mirage set, phasing allows a permanent to temporarily disappear from the battlefield, only to reappear later as if nothing happened
Berserkers' Onslaught has a relatively low mana cost for the effect, and with how easily Animated Army can ramp, you can get Berserkers' Onslaught onto the battlefield rather early to get the most out of its effect
The freedom to walk away from a game is an essential right you should protect, and exercise