It helps prevent wear from handling
They create barriers that make opponents think twice before attacking, discouraging combat without actively disrupting the game
Being able to cheat out a high-value creature like Ulamog, the Ceaseless Hunger on turn one can really shift the dynamic of a game
While the original Omnath allowed you to preserve unspent Green mana, this card turns all of your unspent mana Black
Probably the most competitive examples would be similar to the infinite life Kitchen Finks combo, which currently uses Anafenza, Kin-Tree Spirit or Melira, Sylvok Outcast
Charisma Bobblehead Finally, Charisma Bobblehead, a godsend for archetypes that are interested in Soldiers, has once again seen similar price spikes to the other bobbleheads