Staff of Life

The Staff of Life is the grand prize for making it to the center of the galaxy and flying into the galactic core.

When fired at a planet it instantly terraforms it to full T3 status and fills out all three layers of the ecosystem.

You can use it 42 times (the answer to "Life, the Universe and Everything" - Hitchhiker's Guide to the Galaxy). Sadly this limit also rather nerfs it and makes it a bit of an anti-climax, since it can only be slightly useful in the fight against the Grox.