The general rule of thumb for mana rocks is a 2-1 cost to mana ratio, meaning that if it had cost eight mana, you could expect to get 4 mana out of it
At San Diego Comic Con, a bunch of MTG Doctor Who spoilers were revealed, showing new Planechase cards, creatures, sagas and more from the upcoming MTG Doctor Who crossover set
We've got some of Commander's most powerful cards, like Gaea's CradleGaea's Cradle and EnduranceEndurance, and even more ways to fetch them, like Elvish ReclaimerElvish Reclaimer and Chord of CallingChord of Calling
In the future, this could be lifted when we are confident challenges for this item have resolved
Two-color decks have different requirements than three-color or five-color builds