Amber was undoubtably the strongest ink during The First Chapter meta
Instants and sorceries provide tons of juicy ideas for powers, not only for your Big Bad Evil Guy but also for your more adventurous characters who attempt to craft their own spells
Add in the Treasure aspect - itself a newly pushed mechanic with some fun uses - and how that ties into Black cards like Revel in Riches, and you've got a recipe for a really sweet commander
They dont tend to have protection or anything that stops them from dying

Sergeant Benton Voltron Sergeant John Benton | Illustration by Wei Guan Commander (1) Creatures (10) Arbor Elf Avacyn's Pilgrim Elvish Mystic Elvish Pioneer Elvish Spirit Guide Fyndhorn Elves Sakura-Tribe Scout Selfless Savior Siona, Captain of the Pyleas Skyshroud Ranger Instants (35) Abolish Aerial Boost Ajani's Presence Become Immense Blossoming Defense Crumb and Get It Defend the Rider Emerge Unscathed Fight as One Flare of Faith Fleeting Flight Giant Growth Groundswell Invigorate Jump Scare Loran's Escape Might of Murasa Might of Old Krosa Ram Through Ranger's Guile Royal Treatment Rustler Rampage Scent of Ivy Sejiri Shelter Sheltering Light Show of Confidence Snag Snakeskin Veil Stroke of Midnight Swell of Growth Tail Swipe Take Up the Shield Tamiyo's Safekeeping Tyvar's Stand Valorous Stance Sorceries (6) Broken Bond Divine Reckoning Promise of Loyalty Savage Swipe Single Combat Summer Bloom Artifact (2) Enchantments (10) Duelist's Heritage Empyrial Armor Flaming Fist Gryff's Boon Hyena Umbra Noble Heritage Sentinel's Eyes Utopia Sprawl Wild Defiance Wild Growth Lands (37) Canopy Vista Command Tower Demolition Field Forest x16 Fortified Village Overgrown Farmland Plains x13 Scavenger Grounds Sunpetal Grove Sergeant John Benton barely makes rank as a budget voltron commander

Given how easy it is to create the Darkstar token and that it doesnt cost any additional mana, Rufus Shinra is a great card for giving you continual fodder for your sacrifice outlets, but also just for good board presence