Yoboyo,the Laughing Storm

Flash, Flying, Deathtouch and First Strike.
Whenever Yoboyo enters the battlefield, counter target non-creature spell.
Whenever you cast a spell with even converted
mana cost, draw a card then discard a card.
Whenever you cast a spell with odd converted
mana cost, Yoboyo deal 1 damage to any target
and you gain 1 life. (0 is even.)
Yoboyo's commander tax is One.(It costs just {1} more to cast instead of {2} for each time you've
casted it from the command zone.)