Holy hell. Is Gamesh about to teleport twice, taking actions of opportunity during both teleportations? In my haste to get my actions posted I failed to realize that the two hobgoblins were next in line in that order.
Clarification: The deeper meaning to that question is, since after the first attack the hobgoblin shifted, wouldn't that trigger a teleportation and opportunity for Gamesh to attack before the second enemy had a chance to swing at (and so soundly crit) him?