Command your army with Ureni, spirit dragon of wisdom, or Eshki, leader of the Temur clan
This is just one incentive to attach dark energy to the card, while the other involves its attack
"104.4b: If a game thats not using the limited range of influence option (including a two-player game) somehow enters a loop of mandatory actions, repeating a sequence of events with no way to stop, the game is a draw
The other rare in the booster, Weight Set, is hard to reliably trigger on-curve as well, so I wouldnt take it either
I imagine some list of format staples gets us another 50-100 cards, although staple doesnt necessarily equal problematic. Produces Too Much Mana Too Quickly Because were intentionally creating a larger list in this exercise, we can end the debate on whether or not some cards should be in this category
Proliferate won't do much, though: Multiple finality counters are redundant