Oath Of Druids
A green magic card that lets you show off your library like it's a peep show, and if you have less creatures than someone else, you can pull a creature out like it's your last hope and make everyone else suffer with the rest of the trash.
My friend drew a giant turtle and laughed as my opponent got buried under 50 cards.
I pulled out a frog and my opponent got a headache from the embarrassment.
He showed off a dragon and I got stuck with 10 useless cards.