you have to trade from D/P otherwise I don't know.
lots of tenticool are in canalave city
Number 72 is Tentacool
Misdreavus which is part ghost. You can find Misdreavus in the Lost Tower with in a double battle against this boy and girl. It's Murkrow and Misdreavus. (I say use the HM move defog to battle easier) Hope I helped!
#72 is Misdreavus in the Sinnoh Pokedex.
Either in the lost tower 4F, or in the Hearthome gym several people have MISDREAVUS(#72) *In the lost tower it's a couple with the misdreavus. good luck.
Murkrow is #47 in the Sinnoh Dex and is found with not only Cyrus of Team Galactic but a lot of his members have it as well and Misdreavus is #72 in the Sinnoh Dex and it can be found by trainers in the Lost Tower as well as in the Hearthome Gym.
Pokemon 72 is Tentacool.
In the National Pokedex, it is Tentacool. Should be the same for Platinum.
82+8 = 72
9
72. if you use a ruler, and measure an inch under the bottom of the circle (that the number is in) you will find the switch :)
5