rare temporal forces cards Walking Wake ex - 050/162 Double Pokemon Collector Store LLC Gaming Pokemon – Iron Crown ex

If this card is destroyed by battle and sent to the Graveyard, or if this card in your possession is destroyed by an opponent's card effect and sent to your Graveyard: You can Special Summon 1 "Gaia The Fierce Knight" monster from your hand, Deck, or Graveyard

You regularly saw 6+ mana worth of cards cast on turn 1 Eye of Ugin

But Darksteel Monolith has the potential to be a huge power player in a multitude of other Commander decks as well

Theres only one other legendary creature in Magic that can do that Golos, Tireless Pilgrim who is banned in Commander

In close second is The Odd Acorn Gang , a highly efficient creature that turns your Squirrels into card-drawing trampling monsters