blizz really loves patron warrior :D they saw that it will die out for standard and made a great replacement for unstable ghoul. i would say even a better one since it is a battlecry and not deathrattle
Realistically it will fight against Whirlwind and Cruel Taskmaster for Patron and/or Control decks, in which case I don't see it winning. While it has a solid body attached, combo decks will prefer the cheaper Whirlwind and control decks don't really need the AoE aspect since it it's primarily used to enable Execute or buff a Acolyte of Pain or Grommash, in which case you also prefer the +attack buff and cheaper cost. Overall it's very solid, but might not see play too much over the other cards. It's very good as mini AoE against tokens and small minions tho, so it might be included just for that. Maybe we will see a new mid-range warrior emerging that finds place for this.