Estinien has loads of interesting things going on, from getting aggressive with a leader you can send in the air to incentivizing both non-creature spells and dragons
Classic lines like Dark Ritual into Entomb into Reanimate bring back Griselbrand on turn one, often backed by Force of Will to protect it from Swords to Plowshares or graveyard hate
I do think a lot of these cards need haste because you only have a single opportunity to swing with them and then they are gone, but maybe that final trigger is more than enough
Sven Stolz The card with its own shell around, Colossus Hammer is in combination with Sigardas Aid and Puresteel Paladin the go-to combo interaction in UW Hammer
Play the best madness cards, ruin your opponent's hands with the minotaur / Sire of Insanity / Mindslicer, and profit from the discard with Waste Not and similar cards
That being said, the Emerald/Steel is still a very good deck and very fun to play