Palm mute. Start here. Probably the most important part.
Bending is great! Bending multiple notes is greater.
E minor. This is your base camp. When all else fails return here. Combine with palm mute.
B flat. El diablo. E minors best friend.
Artificial harmonics. Have your thumb and index finger practise together on this.
Natural harmonics without depressing the string.
Be sure to use big tremolo on higher notes!
Add it all together.