Legendary Creature - Zombie Phyrexian Gisa, Glorious Resurrector If a creature an opponent controls would die, exile it instead
Double-faced mythics, however, and about 32% more common than normal mythics
But in general, running out of spells is the best way to lose at Limited so, as odd as it sounds, I would regard Clattering Augur, Echoing Return, Gilt-Blade Prowler and Greed as perhaps the most indispensable cards for this archetype if you arent splashing
Loxi: A two-mana rock with upside
I count six cards that buylist for ten bucks or more: Gaea's Cradle: $44 Academy Rector: $18.50 Vampiric Tutor: $14 Volrath's Stronghold: $10 Arcbound Ravager: $10 Replenish: $10 Clearly, Gaea's Cradle is the king of gold-bordered cards by a wide margin