I'm just not sure if I'm misremembering and it was actually Kozilek, Butcher of Truth, or if both of us failed to see "indestructible" and I got away with one
As an upper limit, assume that eight drafters will need 184-200 maindecked, nonland cards (23-25 spells apiece), theoretically leaving the remaining 176 to 160 cube slots open for mana-fixing
Casting Cost: Card Type: Legendary Creature - Human Knight // Legendary Creature - Demon Power / Toughness: 3 / 5 / 2 / 5 Card Text: Whenever you cast a noncreature spell, surveil 1
They can spend it before blockers are declared, after blockers are declared but before combat damage, or after combat damage is dealt but before combat concludes
A player facing a villainous choice can always choose either option, even if one or both of the options are impossible
It literally tears off the face and wears it