18 cards where the text includes “heroic” and the card types include “human” and the color identity ≤ GUW and it’s legal in Commander

Akroan Skyguard (Born of the Gods #3)
Anthousa, Setessan Hero (Theros #149)
Artisan of Forms (Theros #40)
Battlefield Thaumaturge (Journey into Nyx #31)
Battlewise Hoplite (Theros #189)
Dawnbringer Charioteers (Journey into Nyx #6)
Elite Skirmisher (Born of the Gods #8)
Fabled Hero (Theros #12)
Favored Hoplite (Theros #13)
Hero of Iroas (Ultimate Masters #20)
Hero of Leina Tower (Ultimate Masters #169)
Meletis Astronomer (Born of the Gods #43)
Mindreaver (Born of the Gods #44)
Phalanx Leader (Ultimate Masters #27)
Sage of Hours (Journey into Nyx #50)
Setessan Battle Priest (Theros #29)
Staunch-Hearted Warrior (Ultimate Masters #185)
Wingsteed Rider (Double Masters 2022 #35)

Their mind whirled with grand plans, never thinking of what might happen if they got to the end of the list.