Usually this is done by figuring out if it was worth a full extra card or some percentage of a card
Its part of another spell or ability resolving
17 Gyome, Master Chef It Looks Like Dinner's Ready In a color pair full of death, corruption, and decomposition, you'd probably not expect to find a commander that cares about serving up 'delicious' Food tokens
Creatures (24) 4 Reflector Mage 2 Archangel Avacyn 4 Thraben Inspector 4 Spell Queller 2 Filigree Familiar 4 Toolcraft Exemplar 4 Gearseeker Serpent Lands (24) Spells (12) This build might still be trying too hard, but theres something there Getting four Energy from one card is cute, but even if we wanted it that badly, we could get it more efficiently from Woodweavers Puzzleknot, Glassblowers Puzzleknot, Consulate Surveillance, Confiscation Coup, or Aethertouch Renegade
But portraiture works differently in superhero media, particularly comic books