Learn a few different examples of rhythm-guitar ideas that jump around harmonically and also feature the incorporation of suspended chords.
Learn a variety of ways you can bring more melodic content to your power-chord-driven ideas through the use of single-note lines and small two-note chord voicings.
Fortify your fret-hand/pick-hand coordination while strengthening your overall chops and ability to play fast and clean.
Guitar players are usually on a mission to improve theirguitar tone. For many, this journey never ends. I dare say we're obsessed with it.