Commander Banned Cards Ancestral Recall Balance Biorhythm Black Lotus Chaos Orb Channel Dockside Extortionist Emrakul, the Aeons Torn Erayo, Soratami Ascendant Falling Star Fastbond Flash Golos, Tireless Pilgrim Griselbrand Hullbreacher Iona, Shield of Emeria Karakas Jeweled Lotus Leovold, Emissary of Trest Library of Alexandria Limited Resources Lutri, the Spellchaser Mana Crypt Mox Emerald Mox Jet Mox Pearl Mox Ruby Mox Sapphire Nadu, Winged Wisdom Paradox Engine Primeval Titan Prophet of Kruphix Recurring Nightmare Rofellos, Llanowar Emissary Shahrazad Sundering Titan Sylvan Primordial Time Vault Time Walk Tinker Tolarian Academy Trade Secrets Upheaval Yawgmoth's Bargain In addition to these generically powerful cards for Commander, there are other type of cards not suitable for Commander or Magic: The Gathering in general: Conspiracy, ante, and culturally offensive cards listed below
However, not all stars are created equal
A single blink effect is usually worth much more than the mana you spend to cast it, since you're often saving a creature from removal, or re-triggering an enters-the-battlefield effect
Standard answer to the standard question right now
1 Angel of Suffering
This has made it the weapon of choice for Modern Creativity and a powerful tool for various Legacy decks whose general gameplan is a big creature on turn 2