The only other potential commander, Arthur, Marigold Knight , plays into this last theme quite well
Either way, the strategy is simple: Get some spells payoffs on board and then, you know, cast spells
Decklist: Miracles in Legacy Terminus | Illustration by James Paick Planeswalkers (3) Creatures (4) Instants (16) Brainstorm x4 Spell Pierce Swords to Plowshares x4 Predict x3 Force of Will x4 Sorceries (12) Ponder x4 Portent x2 Council's Judgment x2 Supreme Verdict Terminus x3 Enchantments (5) Counterbalance x2 Search for Azcanta Back to Basics x2 Lands (20) Island x7 Plains x3 Arid Mesa Flooded Strand x4 Marsh Flats Misty Rainforest Polluted Delta x2 Tundra Sideboard (15) Flusterstorm x2 Spell Pierce Spell Snare Counterspell Surgical Extraction x2 Containment Priest x2 Disenchant x2 Vendilion Clique Gideon, Ally of Zendikar Supreme Verdict Baneslayer Angel This miracles deck was created by Andrew Cuneo

While there's a few new commanders that caught my eye -- Altair Ibn-La'Ahad, Basim Ibn Ishaq, and Sigurd, Jarl of Ravensthorpe all are high up on my "to brew" pile -- there's an older commander that I love that got SO MANY new upgrades from the set that I wouldn't shut up about during previews, and unsurprisingly it's been the most requested topic to cover, so let's do it: here's my AC update to Etrata, Deadly Fugitive
2 Mishra, Claimed By Gix + Phyrexian Dragon Engine = Mishra, Lost To Phyrexia The infamous Mishra, consumed by the dark promises of Phyrexia becomes melded to his Phyrexian Dragon Engine in his twisted pursuit of power
Hopefully those decks will find their own day in the sun soon, but for now Id recommend joining the hordes of prowess heroes and getting stuck into combat