If you want to be on the other side of Dueling history, you can play as their opponent, and take down Legendary Duelists too
Although the e-reader covered a range of various products and franchises, perhaps the most well known implementation of it was in the Pokmon TCG
This convinces Yuya to prove to the dragons that they are strong enough as they are without needing to be merged into the Supreme King, with the dragons themselves responding to Yuya's desire to protect as they helped him win his duel against Jack

Julius Jumblemorph Feisty Spikeling Fire-Belly Changeling Flock Impostor Game-Trail Changeling Gangly Stompling Ghostly Changeling Gladewalker Ritualist Graveshifter Guardian Gladewalker Impostor of the Sixth Pride Irregular Cohort Littjara Glade-Warden Littjara Kinseekers Masked Vandal Mirror Entity Mischievous Sneakling Mistform Ultimus Mistwalker Moonglove Changeling Moritte of the Frost Morophon, the Boundless Mothdust Changeling Mutable Explorer Omni-Changeling Omo, Queen of Vesuva Prideful Feastling Realmwalker Rooftop Percher Shapesharer Sizzling Changeling Skeletal Changeling Taurean Mauler Three Tree Mascot Turtleshell Changeling Universal Automaton Unsettled Mariner Valiant Changeling Venomous Changeling War-Spike Changeling Webweaver Changeling Woodland Changeling
You can't cast a Counterspell or Untimely Malfunction as long as they're on the stack, and you can't even sacrifice a targeted creature to Goblin Bombardment in response