Moody Bidoof

Volatile - At the beginning of each upkeep, flip a coin. If you win the flip, Moody Bidoof gets +1/+0 until end of turn. If you lose the flip, Moody Bidoof gets +0/+1 until end of turn.
"Most Bidoofs are simple, or unaware of their surroundings. But a select few Bidoofs are extremely moody, making them better at combat than their brethren"- Professor Paulm