Jenova, Ancient Calamity, for instance, has tons of potential yet is hardly played in Commander
If they cast Titan of Industry against your Spirits, it's difficult to get through a successful attack

Ajani Steadfast Ajani Unyielding Ajani's Last Stand Ajani, the Greathearted Angelic Intervention Archangel of Tithes Archon of Absolution Assault Suit Baird, Steward of Argive Blood Reckoning Brokers Ascendancy Carth the Lion Chandra's Phoenix Chandra, Acolyte of Flame Chandra, Legacy of Fire Circle of Flame Commodore Guff Crown of Doom Cruel Celebrant Deification Djeru, With Eyes Open Ever-Watching Threshold Fey Steed Forbidding Spirit Gatewatch Beacon Gideon's Sacrifice Guardian of the Ages Heart of Kiran Illusionist's Gambit Isperia, Supreme Judge Kasmina, Enigma Sage Kasmina, Enigmatic Mentor Kaya's Ghostform Lae'zel, Vlaakith's Champion Liliana's Scrounger Lost in the Woods Marchesa's Decree Mila, Crafty Companion Mirror Match Mobilized District Norn's Annex Oath of Gideon Oath of Kaya Onakke Oathkeeper Orzhov Advokist Palazzo Archers Pyromancer's Gauntlet Revenge of Ravens Riddlekeeper Rising Populace Sanctuary Warden Sandswirl Wanderglyph Sarkhan the Masterless Search the Premises Settle the Score Slumbering Dragon Soul Diviner Soul Snare Spark Double Spark Double Spectral Grasp Sphere of Safety Tamiyo Meets the Story Circle Tamiyo, Seasoned Scholar Tenuous Truce Thantis, the Warweaver The Chain Veil The Elderspell Tomik, Wielder of Law Trove of Temptation Varchild, Betrayer of Kjeldor Vengeful Pharaoh

With flying and lifelink, its both evasive and resilient, quickly becoming a massive threat
The card advantage is nice, especially since red and white are traditionally not great at landing the long game in Commander matches