You, Iterative Playtester

Legendary Creature — Human Gamer

{T} : Choose another target playtest card. Increase or decrease a number of your choice on it by 1 for as long as it remains on the stack or battlefield. (You can change numerals or number words.) {W} {U} {B} {R} {G} : Reveal the top eight cards of your library. Put each playtest card among them into your hand. Put the rest on the bottom of your library in a random order.