In a deck packed with many cantrips and countermagic, the Regent comes down as quickly as turn three and is extremely difficult to interact with, making them the perfect build around in a format with such a deep card pool as Modern
Power/Toughness This is the section of a card that exists only for creature spells and gives you the general size of the creature in question
What are Japan Showcase cards in Lorwyn Eclipsed
All those factors make Swords to Plowshares the #1 removal spell in Commander, bar none.
MTG Arena is far from perfect, with no ability to play in multiplayer matches, one of the least generous economies in a digital CCG and a complete inability to get rid of cards youre not going to use in favour of those you want to use
On top of demand increasing for these classic typal cards, theres also been some major competitive action recently