Ok this isnt a guide or anything just basic macros for basic leveling not recommended for botting.
Level 1
Slot 1 Shadow Bolt
Slot 2 /petattack [target=pettarget,noexists]
/petfollow [target=pettarget,exists]
/cast Immolate
/target nearest
Slot 3 Demon Skin
Level 2
Slot 1 Shadow Bolt
Slot 2 /petattack [target=pettarget,noexists]
/petfollow [target=pettarget,exists]
/cast Immolate
/target nearest
Slot 3 Demon Skin
Level 3
Slot 1 Shadow Bolt
Slot 2 /petattack [target=pettarget,noexists]
/petfollow [target=pettarget,exists]
/cast Immolate
/target nearest
Slot 3 Demon Skin
Level 4
Slot 1 Shadow Bolt
Slot 2 /petattack [target=pettarget,noexists]
/petfollow [target=pettarget,exists]
/cast Immolate
/target nearest
Slot 3 Curse of Weakness
Slot 4 Corruption
Move Demon Skin to Slot 0
Updating per level good luck and hope this helps