She does it quietly, because the mechanic itself
While it may have some utility on other aggro commanders, Marhault Elsdragon is extremely over-costed to justify it on
Primary Artifact Finishers [cards] Urza, Lord High Artificer [/cards] [card]Urza, Lord High Artificer[/card] is one of the strongest payoff engines available, transforming every artifact into blue mana while also producing a massive Construct that scales naturally with your board
Sven Stolz Another card which I was surprised seeing in the top 5, Relic of Progenitus has been the go-to graveyard hate when it came to Modern for a long time
Back it up with protection from Lightning Greaves, Swiftfoot Boots, or Mithril Coat, and you can often go the distance in just a couple of attacks
Make it something that can withstand the elements as well as theft