This is extremely annoying, especially with Pokemon Trading Card Game Online and online games with fast-paced twitch mechanics
There are borderless character versions of cards from the main set and the Commander decks

Ancient Brass Dragon Ancient Bronze Dragon Ancient Copper Dragon Ancient Copper Dragon Ancient Gold Dragon Ancient Silver Dragon Ao, the Dawn Sky Arcades, the Strategist Atsushi, the Blazing Sky Avaricious Dragon Balefire Dragon Beledros Witherbloom Betor, Ancestor's Voice Betor, Kin to All Bogardan Hellkite Bone Dragon Bonehoard Dracosaur Capricious Hellraiser Chiss-Goria, Forge Tyrant Chromium, the Mutable Clarion Conqueror Darigaaz Reincarnated Defiant Thundermaw Dragon Broodmother Dragonhawk, Fate's Tempest Dragonlord Atarka Dragonlord Dromoka Dragonlord Kolaghan Dragonlord Ojutai Dragonlord Silumgar Ebondeath, Dracolich Firkraag, Cunning Instigator Furyborn Hellkite Galazeth Prismari Goldspan Dragon Hellkite Courser Hellkite Overlord Hellkite Tyrant Herigast, Erupting Nullkite Icingdeath, Frost Tyrant Incinerator of the Guilty Inferno of the Star Mounts Iymrith, Desert Doom Jugan, the Rising Star Junji, the Midnight Sky Kairi, the Swirling Sky Karrthus, Tyrant of Jund Keiga, the Tide Star Klauth, Unrivaled Ancient Kokusho, the Evening Star Korvold, Fae-Cursed King Korvold, Gleeful Glutton Kura, the Boundless Sky Leyline Tyrant Lorehold, the Historian Malfegor Manaform Hellkite Mirrorwing Dragon Moonveil Dragon Moonveil Regent Murktide Regent Neriv, Crackling Vanguard Neriv, Heart of the Storm Nicol Bolas, the Ravager Niv-Mizzet Reborn Niv-Mizzet, Dracogenius Niv-Mizzet, Visionary Niv-Mizzet, the Firemind North Wind Avatar O-Kagachi Made Manifest O-Kagachi, Vengeful Kami Old Gnawbone

The Rest For the most part, the noncreature mechanically unique cards in Counter Blitz are quite powerful
And then you can also tap for any color as long as you control that color in a legendary
I will test out this pushed linear version first