It also sports a Birthing Pod-like activated ability, which will usually upgrade a creature in play and the Fiend Artisan as new creatures hit the bin
All Wizards did was clean it up and make it cheaper as they wanted to make sure it was good, which they did by changing it from blue to white-blue
UP2 - 2P - 3/1 Forestwalk (green gets citywalker) UP3 - 3PP - 3/3 Flying, [new mechanic A] UP4a - 3P - Instant - Counter target spell and deal 2 damage to target creature
Estrid fits in like a Swift Reconfiguration fits on a Devoted Druid
Jerren, Corrupted Bishop / Ormendahl, the Corrupter There are better ways to manage the sacrifice creatures, lose life, gain cards, gain life, repeat structure of black decks, but Jerren, Corrupted Bishop is one of the more flexible versions of that
Its less popular an archetype than straight up Voltron, but its more viable than ever with all of the free and reduced equip creatures