Not going to address the shapechange -> metahuman (addressed elsewhere).
But:
1) Skills?
Does the tiger / Wolf / Bear have the appropriate skills under the critter (for attacks.
Do the 'human' skills carry over for combat (unarmed?), perception, stealth, athletics, etc?
2) "Magicians in Critter form can still cast spells, but cannot perform other task requiring speech"
Does conjuration require speech? (and the subsets of conjuration of ordering already bound spirits etc) and/or is this covered under 'casting spells' or is casting spells, strictly 'sorcery'
3) Gear does not transform
While elsewhere the general opinion seems to be cyberware is not quite gear (having had essence paid for it). What of Foci?
If Foci do not 'change' (seems likely to me), what are the opinions on being 'worn' (if appropriate) after the change. (a shaman with a medcine necklace that is a sustaining Foci, used to sustain the shapechange) Even after becoming a Wolf, the wolf still 'wears' the collar / necklace. If active Foci have a strong enough tie to the Mage to travel with their astral form, I would think they could work some leeway into the physical also.
4) "Add 1 to the critters Base attribute ratings for every hit the caster generates"
Each hit is +1 to each (physical, mental are stated as remaining the same) attribute. Each hit is +1 to A attribute.
Example: Shaman becomes a wolf (B-2,A-3,R-3,S-2,C-x,I-x,W-x,Edge-3,Init 6, IP 2)
So if the shaman gets 3 hits. Stats are:
B-5,A-6,R-6,S-5
or
B-2,A-3,R-3,S-5 (shaman chose to add three to str to go stronger)
Also Init would presumably be recalculated based on the new physical stats... Does IP change to a Wolf's, the mage's, or?
Thanks in advance for you thoughts.
Peace