It will also affect the stiffness and balance characteristics (distribution of mass)
Red has some crazy ramp in the right builds

Air Nomad Student Alharu, Solemn Ritualist Architect of Restoration Boonweaver Giant Cori Mountain Stalwart Devout Monk Dragon Bell Monk Dragon's Disciple Dragon's Eye Sentry Dueling Coach Efreet Weaponmaster Elsha of the Infinite Elsha, Threefold Master Emissary of Soulfire Enlightened Ascetic Faithful Pikemaster Flamehold Grappler Fleet-Footed Monk Geist-Honored Monk Githzerai Monk Golden-Tail Disciple Graceblade Artisan Half-Elf Monk Hand of Enlightenment Ishai, Ojutai Dragonspeaker Ishai, Ojutai Dragonspeaker Jeskai Brushmaster Jeskai Student Jukai Naturalist Leonin Iconoclast Lone Missionary Lotus-Eye Mystics Loxodon Wayfarer Lyse Hext Mantis Rider Master of Pearls Militant Monk Monastery Mentor Monk Gyatso Monk Idealist Monk Realist Monk of the Open Hand Narset, Enlightened Exile Narset, Enlightened Master Narset, Jeskai Waymaster Oji, the Exquisite Blade Ojutai Exemplars Orator of Ojutai Oreskos Sun Guide Poised Practitioner Pride Guardian Rasaad yn Bashir Reliquary Monk Rhox Bodyguard Rhox Faithmender Rhox Meditant Rhox War Monk Rune-Tail, Kitsune Ascendant Sage of the Skies Serene Master Serra Ascendant Snow Villiers Soltari Monk Soulfire Grand Master Strongarm Monk Student of Ojutai Taigam, Ojutai Master Tifa, Martial Artist Venerable Monk Wandering Champion Wayspeaker Bodyguard Zedruu the Greathearted

if you dont want Mirror Room, you dont want this card
The difference is just in waterbending 10, which isnt the easiest thing to do
If you are new to playing in the League, its a fun, friendly way of playing locally in a weekly, organized format