If you're low leveled and don't have alot of cash, best thing to do with 10m is o buy full dharoks with a rock cake, otherwise if you have around 1b+, invest in these current items:
Chaotic lites ( 1b each, excellent for pvming due to how fast it is)
Doomed armour ( 1b/piece, strong armour that does really well in both pvming and in pvping)
Full dharoks + steadfast boots + bring i +goliaths (rest spawn gear will handle) = 152m
Chaotic longsword + full doomed armour + Demonhorn boots + demonic aura wings = 7.5b
Chaotic longsword (undeg) or Tormented weapon + Full beasty torva/darklord + heroic set or infernal cape + upg fury + tormented gloves with erow and gold octo = 50b-1t.
::Gear - meele with a korasi (200m) or upg ags (1b)
Bit expensive setup:
::Gear - dharoks with an illuminessence (10b) or doomed claws (5b)
::Gear - dharoks with a fluressence or an elder maul (300b).
Hope this helped you out a bit