First off: a DAW that clicks with you, to ensure a swift workflow. Your ideas will be more finely detailed with ease and not lost in the process of working it out.
Second: basic production knowledge. These can be found all over the web. YouTube is especially handy for visual reference and visual learners.
These plugin types are a must-have for any producer IMO:
For creative use:>wavetable synths>subtractive synths>additive synths>FM synths>reverb>delay>bitcrushers>distortionPost too long. Click here to view the full text.