How do you shape shift in dragon age origins for PS3?

Answer 1

To gain the shape shifting abilities, you can either ask morrigan to teach you when her approval is neutral. Or you can buy the manual from Varathorn at the Dalish camp.

To use it hold R2 then go to spells, the shapeshifting abilities are placed here...

this is what you need

• To be a mage
• Selected the shape shifter specialization (you can choose it once you reach a certain level).
• Have purchased a shape shifting skill with a skill point (e.g spider, bear, etc.).
• Have Learnt the ability (explained above).