You can't tap more creatures to convoke Ancient Imperiosaur than is necessary to pay for the spell
And while it doesn't reach the eye watering values of the rest of the cards coming up on this list, at $130+, it's still a unbelievably good pull if you manage to score it
The dungeon, as well as the initiative mechanic, were introduced in Commander Legends: Battle for Baldur's Gate
The red lands that burn decks tend to play are utility lands that rarely enter tapped, like Den of the Bugbear or Ramunap Ruins
There are a lot of great cards in this supplemental set
This means, for example, that Duh can destroy an Eighth Edition Shivan Dragon but not a Seventh Edition one (flying got reminder text for the first time in Eighth Edition)