Defiler of Dreams The Defilers from Dominaria United have abilities that turn one of the colored pips in your spells mana costs into phyrexian mana
Lord of the Rings: Tales of Middle-earth Release Date and Magic Card Offerings Lord of the Rings: Tales of Middle-earth Release Date and Magic Card Offerings Lord of the Rings: Tales of Middle-earth has two launch windows in 2023, June and November
Etherium-Horn Sorcerer Mostly seen in cascade value decks led by commanders like Maelstrom Wanderer or Averna, the Chaos Bloom, Etherium-Horn Sorcerer can fire off back-to-back cascades whenever you bounce and recast it
Tarkir: Dragonstorm
While angels are certainly taking a hit from rotation, losing Righteous Valkyrie, this card may be strong enough to pull it back into the main stage
It doesnt do a whole lot to help one of your creatures attack that couldnt already attack before, and I think thats the big thing you want Equipment to do for you, and +1/+1 isnt going to do it that often, which wont feel great for such a high Equip cost