That 9-mana cost needs to come down quite significantly, but any reasonable amount of milling should fill your graveyard with permanents very quickly
Its one of many designs from the Counter Blitz precon that I really love: It hints at +1/+1 counters but gives you the flexibility to build around any type of counter
On top of that, Ultima is also an answer to the many powerful utility lands in the format
You could play Bankrupt in Blood, Plumb the Forbidden, or Skulltap in this slot
Time Reaper Am I the only one who likes this card
As if this weren't powerful in its own right, at the beginning of its controller's combat phase, it can be used to provide an artifact creature such as a crewed vehicle with both lifelink and vigilance, allowing already impressive vehicles to offer yet even more value