If Spawn-Gang Commander is countered or otherwise leaves the stack in response to that triggered ability, the triggered ability will still resolve as normal

We Are Not Worthy | Commander | Stephen Johnson Commander (1) 1 Reidane, God of the Worthy Creatures (19) 1 Alms Collector 1 Eidolon of Rhetoric 1 Giver of Runes 1 Keeper of the Accord 1 Knight of the White Orchid 1 Kor Cartographer 1 Mother of Runes 1 Oreskos Explorer 1 Pilgrim's Eye 1 Resolute Watchdog 1 Selfless Savior 1 Selfless Spirit 1 Serra Ascendant 1 Spirit of the Labyrinth 1 Silent Arbiter 1 Skittering Surveyor 1 Solemn Simulacrum 1 Thalia, Guardian of Thraben 1 Weathered Wayfarer Instants (10) 1 Dispatch 1 Fate Forgotten 1 Generous Gift 1 Invoke the Divine 1 Path to Exile 1 Return to Dust 1 Settle the Wreckage 1 Silence 1 Swords to Plowshares 1 Teferi's Protection Sorceries (8) 1 Approach of the Second Sun 1 Austere Command 1 Divine Reckoning 1 Doomskar 1 Fumigate 1 Open the Armory 1 Rout 1 Wrath of God Enchantments (11) 1 All That Glitters 1 Armored Ascension 1 Aura of Silence 1 Authority of the Consuls 1 Blind Obedience 1 Celestial Mantle 1 Ethereal Armor 1 Ghostly Prison 1 Land Tax 1 Smothering Tithe 1 Sphere of Safety The only thing I've got real second thoughts about is the lack of Swiftfoot Boots and Lightning Greaves

Punish them for doing so with Kediss, Emberclaw Familiar, one of the best lizard commanders, Tana, the Bloodsower, and Breeches, Brazen Plunderer
What Is Delirium
The drops all come some number of skinned cards, reprints with new artwork, and a mechanically unique hero
Since you just need to connect with a creature to create a token of it, Imposter Syndrome has a huge amount of potential