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!
national tentacool sihhoh misdreavus
lots of tenticool are in canalave city
Jolteon
GLACEON
unown
The ID For Pokemon Platinum(USA) CPUE d074d1b3
lots of tenticool are in canalave city
you have to trade from D/P otherwise I don't know.
Pokemon Number 169 in Platinum is Leafeon
Number 72 is Tentacool
Pokemon number 151 is Manaphy
rotom
gengar
wormadam.
Snorunt
its golem
GLACEON
unown