Our opponents will be dead in no time
For one colorless and two Black Mana, you could cast a Sorcery which simply stated, If opponent doesnt concede the game immediately, each player must ante an additional card Now, Ive never known of any situation where additional cards were not added to ante
But do you know whats really crazy
Cards That Are More Expensive to Plot And finally, we come to cards that are more expensive to plot than to cast normally
MtG Tarkir: Dragonstorm Mythic Rare Ugin, Eye of the Storms Legendary Planeswalker Ugin Loyalty: 7 When you cast this spell, exile up to one target permanent that's one or more colors
Probability and statistics rule that now you have a much lower chance to see Ob in your opening hand