For a single mana, it provides a suite of three abilities that exile cards from any graveyard, one to produce mana, one to drain opponents life, and one to gain its controller life
The Rules For Commander Damage The rules for commander damage initially sounds simple, but there are a lot of intricacies to keep in mind
Eldrazi decks often have a small artifact subtheme to generate the mana needed to cast a 10-drop creature, although it does make them admittedly soft to artifact sweepers like Vandalblast
Have Volrath become a Beguiler of Wills and tap to likely nab the best creatures on the board
Lastly, theres Thada Adel and Agent of Treachery
A guaranteed source of mana in the command zone is quite the card and is one of the reason Marwyn is on the stronger side of Elf Commanders