Fated Clash Final Showdown Flawless Maneuver Frontline Medic Gavony Gideon's Phalanx Gideon, Ally of Zendikar Gideon, Martial Paragon Gimli, Mournful Avenger Grand Crescendo Gyome, Master Chef Hajar, Loyal Bodyguard Hakoda, Selfless Commander Heliod, God of the Sun Hero of Goma Fada Hour of Devastation Impervious Greatwurm Inspiring Call Iroas, God of Victory Join Shields Kamahl's Will Kamahl, Heart of Krosa Karfell Kennel-Master Keeper of the Crown (adventurer)(playtest) King Darien XLVIII Knight Exemplar Knight of Lost Causes (playtest) Krang, Utrom Warlord Kytheon, Hero of Akros Last Night Together Lena, Selfless Champion
It was probably with one more creature than your opponent, one better spell, or one key piece of interaction that wouldnt be there if you werent just slightly ahead in card advantage
Wizards of the Coast has moved away from designing such cards
With this admission from Rosewater, it is likely we wont see such barriers to limited play pop in Draft boosters again any time soon.