Complex sentence: Predictably, the attack was a disaster, putting an end to Terrorsaur's ambitions for after this he seems to have abandoned his ambition to overthrow Megatron in later episodes and become at least an obedient, if not loyal, soldier.
Split into simpler sentences: Predictably, the attack was a disaster, putting paid to Terrorsaur's ambitions for the time being. In later episodes, he seems to have abandoned his ambition to overthrow Megatron and become at least an obedient, if not loyal, soldier.