23 cards where the text includes “gains” and the text includes “double strike” and the mana value < 3

Boros Charm (Outlaws of Thunder Junction Commander #216)
Sunhome, Fortress of the Legion (Outlaws of Thunder Junction Commander #324)
Temur Battle Rage (Commander Masters #264)
Twinferno (Dominaria United #149)
Paladin Class (Adventures in the Forgotten Realms #29)
Reyav, Master Smith (Commander Legends #290)
Psychotic Fury (Dissension #68)
Critical Hit (Adventures in the Forgotten Realms #137)
Assault Strobe (Scars of Mirrodin #82)
Raking Claws (Ikoria: Lair of Behemoths #131)
Double Cleave (Ultimate Masters #214)
Picnic Ruiner // Stolen Goodies (Wilds of Eldraine #232)
Buccaneer's Bravado (Rivals of Ixalan #96)
Case of the Shattered Pact (Murders at Karlov Manor #1)
Chandra's Pyreling (Core Set 2021 #138)
Thunderous Orator (Strixhaven: School of Mages #35)
Rustler Rampage (Outlaws of Thunder Junction #27)
Quick Draw (Outlaws of Thunder Junction #138)
Cabaretti Initiate (Streets of New Capenna #137)
Veteran Cathar (Shadows over Innistrad #238)
Hat Trick (Unfinity #13)
Priest of Possibility (Alchemy: Dominaria #2)
Turbo-Thwacking Auto-Hammer (Unstable #209)

It is the moment of discovery, the triumph of the mind, and the end of these results.