Though your own critters are going to be caught in the crossfire, a Ygra deck is likely built with disposable (or indestructible) creatures in mind, keeping important cards alive with Gyome Master Chef or profiting from their destruction with Marionette Apprentice
It sets the deck up far better and has a discernible payoff
Then you gain 3 life if that player has more life than each other player
For some, it was Necrite, or Macabre Waltz, or Pulling Teeth
I personally love the super saturated Raichu on the left
Plus, if you can get something onto the battlefield, their battlefield is often lacking any real threats until the midgame, letting you go on the offensive uncontested