Abaddon and his forces are so powerful in Warhammer 40,000 lore that they literally tore the galaxy in two, divided by a tremendous warp rift known as the Cicatrix Maledictum
My biggest miss in the list of best cards from Modern Horizons 3 was Phelia, Exuberant Shepherd, which turns out to be pretty nice in an aggro shell, and this card may very well go in that deck
They don't copy whether that creature was tapped or untapped, whether it had any counters on it or Auras and Equipment attached to it, and so on
If its in the command zone, you need lots of ways to kill your opponents creatures and mana to either grow Shelob, Dread Weaver with +1/+1 counters or grow your board using your opponents cards
Playing All-In Reanimator The most common play pattern for this deck will be to find a discard outlet (such as Bazaar of Bagdad, Recall, or Wheel of Fortune), and then use it to dump one or more large creatures in to the graveyard