Field of Ruin also works well for activating Hedron Crab or Fraying Sanity just a little extra
The Modern Horizons 3 Creative Energy Commander Deck includes 1 deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil alt-frame card of rarity Rare or higher and 1 Traditional Foil alt-frame Common or Uncommon card), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card.
While other characters like the Floodborn Mother Gothel released in Shimmering Skies will still be preferred for most decks, Emerald/Amethyst decks that specialize in exerting opposing characters will be able to benefit massively from this ability, enabling them to effectively clear the board if played correctly
That shell probably involves cards like Malakir Rebirth and Not Dead After All
This could create a situation where players spend a lot of time trying to include these cards into their decks only to realize during their first game that they registered an illegal Sealed deck