are mtg secret lair cards legal Glenn, the Voice of Calm Are new cards legal in

Sphere/rock is just ONE round thing

Cage has some flexibility in other matchups, being solid against not only graveyard strategies but also decks utilizing Collected Company and Chord of Calling, like Devoted Druid combo decks

No one is discarding Black Lotus to gain mana of any color these days

Sisay, Weatherlight Captain Sisay, Weatherlight Captain is a rare 5-color identity commander that costs 3 and feeds itself

Some expensive creatures, such as Herald of Leshrac and Bane of Progress, have immensely powerful effects but low power, making them ideal targets for a Nethroi reanimation burst

But there just aren't enough new cards to really make that matter