Blue
Ravenous Bugblatter Beast of Traal
Unarmed Strikes are melee weapon attacks though?
Nope. They errata'd it. Unarmed strikes are explicitly NOT weapon attacks.
From the Errata document:
Weapons (p. 149). Unarmed strike doesn’t belong on the Weapons table
Melee Attacks (p. 195). The rule on unarmed strikes should read as follows: “Instead of using a weapon to make a melee weapon attack, you can use an un-armed strike: a punch, kick, head-butt, or similar forceful blow (none of which count as weapons). On a hit, an unarmed strike deals bludgeoning damage equal to 1 + your Strength modifier. You are proficient with your unarmed strikes.”