Legion Warboss
At the beginning of combat on your turn, before attackers are even declared, this Goblin has already committed a hasty 1/1 to the red zone that has to swing. That mandatory token is the whole engine, and it dovetails with Mentor by design: the token enters as a 1/1, so when the Warboss attacks alongside it, that fresh body is a legal target with lesser power, and the counter usually rides forward on the disposable Goblin. The result builds and sharpens its own board every turn without ever asking you to spend another card. What it pays for that autonomy is fragility on two fronts. The 2/2 frame dies to nearly everything, so removal tends to land the moment it resolves. And because the token creation is mandatory with a forced attack, an open blocker turns your free Goblin into a body fed into a trade you may not have wanted. Read it as an engine wearing a creature's clothes: left alone two turns, it has already generated more attacking power than three mana should buy, which is exactly why it draws answers. The design descends from the red midrange threats that punish a passive opponent, with Goblin Rabblemaster as the obvious relative. Rabblemaster arrives a turn sooner and scales its tokens harder; the Warboss trades that ceiling for the Mentor rider and a body that keeps paying out every turn it survives.
