Any effect that refers to your commander or a commander you own or control without specifying creature will apply to a Background that is your commander, as appropriate
Companion (1) Creatures (2) Planeswalkers (8) Narset, Parter of Veils x2 The Wandering Emperor x4 Teferi, Hero of Dominaria x2 Instants (18) March of Otherworldly Light x4 Censor x2 Consult the Star Charts x4 Dovin's Veto x2 Get Lost x2 No More Lies x4 Sorceries (4) Enchantments (2) Lands (26) Castle Ardenvale Deserted Beach x2 Eiganjo, Seat of the Empire Field of Ruin x2 Floodfarm Verge x4 Fountainport Geier Reach Sanitarium Hall of Storm Giants Hallowed Fountain x4 Island x2 Meticulous Archive x2 Otawara, Soaring City Plains x2 Restless Anchorage x2 Sideboard (14) Change the Equation x2 Rest in Peace x2 Test of Talents Knockout Blow x3 Kutzil's Flanker x2 Mystical Dispute Elspeth, Storm Slayer Regal Caracal x2 Above is a Pioneer Azorius Control deck, with a land count of 26
When you're told to proliferate, you choose any number of players and/or permanents that already have counters and give them one more of each kind of counter they have
Normally when you start making a set, you have the ground floor of how its going to work figured out for you: Its just normal Magic rules, said Verhey
Resiliency helps too
the card advantage stacks up quickly to ensure your hand never runs dry as long as you keep casting gold spells
