Magneton (Magnezone) – Fight enemies in Chargestone Cave.
Nosepass (Probopass) – Fight enemies in Chargestone Cave.
Eevee (Leafon, Glaceon) – Fight enemies near moss-covered stone in Pinwheel Forest for Leafeon / Fight enemies near frozen ice crystal at the bottom of Twist Mountain for Glaceon.
Feebas (Milotic) – Trade Feebas while it holds a Prism Scale (get a Prism Scale on Route 13).
Deerling/Sawsbuck (Spring, Summer, Fall, Winter Forms) – The seasons in Pokemon Black and White change by real-time months, each season features a special look for your Deerling or Sawsbuck.
Rotom (Normal, Heat, Wash, Frost, Fan, Mow Forms) – Open boxes in the first door on floor 1 of the Shopping Mall Nine to change Rotom’s form.
Giratina (Origin Form) – Give Giratina a Griseous Orb from the Shadow Triad on the Marvelous Bridge to change its form.
Shaymin (Sky Form) – Give Gracidea from the woman in the Pokemon Center in Lacunosa Town to Shaymin.
Deoxys (Normal, Attack, Defense, Speed) – Examine the meteor in the museum in Nacrene to cycle through forms.
Arceus – Give a plate to Arceus to change form.