The twist must be there are 5 kinds of materia, so each line is about a materia. That's the only kinda twist I can come up with, unless the plums are the little purple dudes in the Temple of the Ancients.
But it's weird how the actions seem to be messed up. Let me just look at action.
stood alone and did it's work--independent
aid of the gods--summon
healed the earth--support
told the others what to do--command
Okay, I get it. What does command mean? "tell others what to do." That's the twist! I've got it!
What's left, now? Hmm.
Magic! Now, I just need an expression. The blood
1) called on supernatural powers
2) pulled a rabbit out of its hat
3) disappeared
4) cast a spell
5) split the planet in half
6) said, "I will now cut Cloud in half!"
7) did something that means magic