For the privilege of owning one of those, youd have to pay $20
As was mentioned, Ash Barrens is not a bad land card, but if you intend to speed up the rhythm of the Limit Break deck, youll need lands that effectively drop in and provide colored mana or have special effects that synergize with the rest of the cards
Mono-colored commanders greatly restrict the tools available to you, so they need to supply lots of power to make up for it, and Dragonhawk doesn't get there for me
Reach and trample are important, and X number of +1/+1 counters is basically standard hydra procedure, but I love that the counters go onto the card while it's an aura, then still count when it becomes a creature
You might be a Sliver player, and if youre happy being a villain, then thats cool and all, but we arent about that
The combo is more resilient than you think