My First Bonsai...

treebeard55

About the only made-for-bonsai tool that I'd say you need is a pair of concave cutters. They reduce overall scarring by a significant margin.

Beyond that?

You want some scissors; they can be designed for bonsai or not, but thinner blades let you get into smaller spaces.

You can buy a root rake, or you can take an old table fork and bend the tines to make your own. It will do, as long as you remove any rough edges.

A second pair of scissors/shears, just for roots, is helpful. Roots have dirt on them, which dulls scissors faster.

A chopstick is useful when you're repotting. Take a pair home next time you eat at a Chinese place.

Books, clubs, and fora like this one, to help you learn.

Last but most important is something you have already: your brain.

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Treebeard 55

"... the Lord God made all kinds of trees ... trees that were pleasing to the eye ..." (Genesis 2:9, NIV.)