The remaining basic tools are
The Rectangle tool is a easy way to extract squares and rectangles easily.
The Flare tool is ideal for designing light up effects
Polar Grid Tool allows us to create complex exact shapes.
Shape Builder and Gradient tools are key for adding information and deepness to designs.
Smooth tools are useful for purifying curves and exteriors,
The Path Eraser tool are used for deleting irrelevant lines or paths from image.
Symbols are the main part of Illustrator