Ratchet: Is it true the Forge has been drained of its power? Then any hope of rebuilding the Omega Lock has truly been lost. Smokescreen: I... did what I felt was right. Ratchet: And your instincts have again proven to be quite sound.
Instant Expert: Optimus has no trouble with his new flight-mode or weaponry after being upgraded by the Forge.
Screw Destiny: When Smokescreen is faced with accepting the Matrix of Leadership and letting Optimus die for the greater good, he chooses to sacrifice Cybertron's future to save Optimus (and deal a devastating blow to the Decepticons as a result).
Status Quo Is God: The Autobots are fully reunited, Darkmount has been reduced to rubble and the Decepticons have escaped on their ship. The Forge of Solus Prime is spent of its energy, the Star Saber and Dark Star Saber are apparently lost (technically, the Star Saber is just on the warship, unavailable to either party), and Predaking is frozen solid in the Arctic. All that's needed for business as usual is for the Autobots to find a new base, which is provided in the next episode.
Tactical Withdrawal: Despite Megatron's protest, Starscream orders a full retreat to maintain hope of winning the war another day.
Too Powerful to Live: Implied when an act of subterfuge leads the Predacon dragon to be groundbridged by Ratchet to the arctic in order to take it out of play where it would have otherwise singlehandedly defeated the Autobots.