It hits all the right notes for that role: Ashling creates mana, draws cards, and even tosses cards to the graveyard to fuel Past in Flames and Underworld Breach
At its floor, this card can probably hit most of your opponents for a few damage and make a handful of treasure in almost every Commander game
In a format where games may go long, cards like Orbital Plunge, Gravkill, and the reprinted Banishing Light will be essential for dealing with evasive bombs and towering Spacecraft
And with lifegain all over the place, your opponents can afford to multi-block and kill your biggest Wolf on every attack, making it hard to sustain momentum
When a dinosaur enters the battlefield or your control (or Pantlaza herself ETBs) you exile cards from the top of your library until you hit a nonland card with mana cost equal to or less than that creature's toughness