I'd prefer not to see spells or potions duplicating shapeshifting. Shapeshifting is pretty awesome, and well worth its cost. Somehow it seems to cheapen it if a wizard can access it without the appropriate powers.
PS: Deadmanwalking's stats for Listens To Wind:
Name: Listens-To-Wind
Aspects:
High Concept: Senior Council Wizard
Other:
Little Brother;
Illinois Medicine Man;
Patient and Quiet;
I See Ley Lines;
Friend of the Blackstaff and Martha Liberty;
Gonna Kick Your Ass Up Between Your Ears;
Skills:
Fantastic: Discipline, Lore,
Superb: Conviction, Endurance,
Great: Empathy, Presence, Rapport
Good: Alertness, Athletics, Contacts, Investigation, Scholarship,
Fair: Deceit, Fists, Intimidation, Survival, Weapons,
Average: Burglary, Craftsmanship, Performance, Resources, Stealth,
Powers:
Refinements [-14]
Evocation [–3]
Thaumaturgy [–3]
The Sight [–1]
Soulgaze [+0]
Wizard’s Constitution [+0]
True Shapeshifting [-4]
Modular Abilities [-9]
Total: -34 Refresh
Powers:
Evocation: Elements (Water, Fire, Earth, Spirit);
Power (Earth +3, Spirit +5, Fire+2)
Control (Earth +1, Spirit +4, Fire+1)
Thaumaturgy:
Control (Summoning and Binding +1, Biomancy +3)
Complexity (Divination +1, Summoning and Binding +2, Biomancy +4)
Focus Items:
Wizard’s Staff (+1 Offensive and Defensive Power and Control with Spirit)
Enchanted Items:
Bead Necklace (8 shift Block or Armor 4, 3 times per session) [4 Enchanted Item Slots]
Stress:
Mental: OOOO (+1 Minor Consequence)
Physical: OOOO (+1 Minor Consequence)
Social: OOOO
Armor: By spell or item effect.
He does 11 shift Offensive and Defensive Evocations casually (those both drop to a mere 10 without his staff). He can shape shift into forms granting any 7 points of Physical Powers (for example, a huge bear would be Inhuman Strength, Inhuman Toughness, Hulking Size, and Claws) as a supplemental action, and can up selected skills to Fantastic casually while doing so.