Perhaps not good enough as a scry commander, but Arwen is a solid role player, even if you never activate that 6-mana ability
The work of noted MTG mathematician Frank Karsten on mana base requirements, widely referenced in the competitive community, is grounded in hypergeometric probability
In the case of the last two cards that might be so but Goyf is still certainly very strong and well worthy of a cube slot
Cards like Mystical Tutor , Personal Tutor , Enlightened Tutor , Idyllic Tutor , Sylvan Tutor , and Worldly Tutor
For nearly three years, I almost exclusively played Stoneforge Mystic decks across all the formats I was playing at the time
Otherwise, you may turn a permanent you control face up . Manifesting dread allows players to look at the top two cards of their library manifest one as a face-down 2/2 creature and put the other in their graveyard