Lyra Dawnbringer If the angel typal strategy speaks to you, Lyra Dawnbringer makes a fantastic lord for the creature type
Sauron, the Dark Lord The best new card for the Command zone is Sauron, the Dark Lord
Class dismissed
Obviously these may be a miss for your format for other reasons (power, archetype mismatch, rarity, don't run planeswalkers etc) but here's a few that I found interesting, divided by broad category rather than color: While I'm still not done reading Cosima, God of the Voyage (I'm on chapter 2, the language is a bit dense) these cards are ones I do like both sides of
But remember that the card also has a lot of applications in the Gruul/Naya/Domain Zoo matchups, as well as Delver games
Skirk Prospector lets you sacrifice goblins to generate mana