This sorcery spell deals 13 damage to each creature on the battlefield, but it does cost nine mana
Dead set on playing a flying creature that costs four colorless and one black mana that could give you card advantage
Dawnhand Dissident must be under your control in order for you to start casting a creature spell using its last ability, but it doesn't need to stay under your control throughout that process or be under your control as the spell resolves
So, with all that said, what the heck could be number one
The worst is when you turn deck manipulation tricks against them: Brainstorm back the best two cards you can't get rid of, then use a Polluted Delta to shuffle them back in the deck
Created by Peter Adkinson, Magic the Gathering was first introduced in Dallas, Texas in 1993 at an event known as the Origins Game Fair