With powerful cards in his arsenal, Kaiba climbed the ranks to become the top duelist in the world
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Abstergo Entertainment All Suns' Dawn Archenemy's Charm Asgardian Inspiration Aurora Phoenix Bond of Insight Bonebind Orator Bound // Determined Bygone Marvels Cabal Surgeon Call to the Netherworld Charred Graverobber Controvert Crawl from the Cellar Creeping Renaissance Crystal Dragon Curious Forager Damage Control Crew Dark Intimations Divergent Equation Dogmeat, Ever Loyal Doombot Harbinger Dryad's Revival Dusk // Dawn Eerie Soultender Exhumer Thrull Exile into Darkness Experimental Overload Fantastic Elasticity Fell Horseman Flood of Recollection Forbidden Crypt Garza's Assassin Ghost Lantern Glissa's Retriever Gloomshrieker Greenwarden of Murasa Grim Harvest Healing Technique Holistic Wisdom Icefall Iname, Life Aspect Inspiration from Beyond Invasion of Shandalar Inventive Iteration Ishgard, the Holy See Kishla Trawlers Krovikan Rot Lochmere Serpent Long Rest Master Skald Metallurgic Summonings Midnight Recovery Morgue Theft Mystic Retrieval Niko Defies Destiny Nostalgic Dreams Nyx Weaver Once and Future Order of Midnight Pair o' Dice Lost Possessed Skaab Praetor's Counsel Pull from the Deep Reap the Past

At least there's more Treasure and maybe some cards in it for you
The other trouble creature type was Wall, because at the time Walls essentially all came with defender
The 3-color family uses shield counters as their signature mechanic and produces generically strong counter-based commanders like Falco Spara, Pactweaver and Perrie, the Pulverizer