Urza's Ruinous Blast [Dominaria Prerelease Promos] SWSH178 You can send 1 monster

You can send 1 monster from your hand to the GY

if another Trap Card you control that is a monster would be destroyed by your opponent's card (either by battle or by card effect) and sent to your Graveyard

Set: EX: Sandstorm Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

and they also get their own cadre of Level 2 attendants that let you destroy your own cards to use their effects

Urza's Ruinous Blast [Dominaria Prerelease Promos] SWSH178 You can send 1 monsterSet: Dominaria Prerelease Promos Type: Legendary Sorcery Rarity: Rare Cost: {4}{W} (You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Exile all nonland permanents that aren't legendary. Centuries ago, one man's vengeance plunged the world into ice and darkness.