Because the set was focused on wedges and the Dragonlords were ally-colored creatures, a misfit for a wedge set (wedge sets use two-color enemy pairs as those overlap two wedges), there wasn't a good home for them
The ability to make permanent tokens is huge, and Menace and Haste make it pretty easy to get the triggered ability online
Banking up extra draws with Clue tokens and Blood tokens helps a lot
She is a planeswalker, however, which are inherently weaker in a multiplayer format because you have to defend her from not just 1 but 3+ possible attackers, so I'd avoid running her in most decks
While Elesh Norn is still standing in a pose that is reminiscent of her original card, this iteration of her has her looking directly at you instead of off into the distance, and more importantly, she is graced by a dead body draped over her massive headpiece
Taken together, it looks like fish are back on the menu in Modern