robot chicken mtg card Robot Chicken - Rumor Mill

She is clearly the next best after #1 below (and while that's technically a spoiler, come on, we all knew he'd be there)

Channel lets you pay life to generate a huge burst of mana, and then Fireball turns that mana into lethal damage in one shot

Assuming you have a legendary creature already in play, like Ragavan, Nimble Pilferer, it then returns to the battlefield immediately attacking as though it had haste

Ravenous Rats and Mesmeric Fiend were used a fair amount back in the day as disruption and value in Recurring Nightmare style rock decks

Once your creatures are out of the way, Ajani, the Great Hearted has no way to protect himself nor provide you with any advantage for having him on the battlefield