Common fix medium
Wrong wreak havoc
Use this wreaking havoc
i · WhyTwo lines, no filler
Correct form. Listed because 'wreck havoc' (verb WRECK) is a common slip, and 'wreak' is rare outside this phrase. Past tense is WREAKED, not WROUGHT.
ii · Brew tipKeep this one
Wreak (cause), not wreck (destroy).