[Sentai]

Quote:

Originally Posted by Nageto004

i'm just curious how they are going to explain how the keys work. since the legendary war is the last episode the past rangers don't have to give up their powers at the start. so what, do they just "tap into the legendary rangers fighting spirit" or something?

My guess would be Gosei is going to say because this was a desperate time, and he forcefully tapped into the Morphing Grid to call upon the power of past rangers. Because of the dangers involved tapping into such power, they can't access the power straight away. They need to become Mega and then SuperMega only when they need to.