Cards like Mishras Factory and Inkmoth Nexus work great in Baba Lysaga decks because they can have three cards types simultaneously, enabling her effect with only a single sacrifice
While basically all blue decks were either Treasure Cruise decks or Dig Through Time decks, there was definitely a wide variety among those
[W] Sprinkle Water: 30 damage
The Azorius Colossus, while very strong in Commander, is not really Affinity-focused
Derevi lets you tap or untap any permanent when a creature you control deals combat damage to a player, which is great for Najeela since she makes more creatures with every attack, and has that five mana extra combat ability
With an Ink cost of 3, 2 Strength, 3 Willpower and 1 Lore, Ursula doesnt look great at first glance