Ayguan, The Acidic Ambusher

Partner with Farfrou, Poisonous Avenger.
When Ayguan deals combat damage to an
opponent, it deals infect damage equal to half
its power to any target. If needed, round down.
{5}{b}{g}: Attach Ayguan to Farfrou until end of
turn. They both gain each other's abilities and
have combined power and toughness. And they
attack as one creature as long as they're
attached.