Staffan said:
I believe the animal companion is a cost because shapeshift is allowed from level 1. Level 1 shapeshifting plus animal companions would make the shapeshift druid strictly more powerful from level 1 through level 4.
I could, however, see a rule about a shapeshift druid getting an animal companion at 5th level, with an effective level of level-4. Sort of like a ranger.
I question your assertion that the shapeshifting druid is strictly more powerful than a non-shapeshifting druid of the same level in any significant fashion. There is a bigger difference due to the stat allocation then there is due to the inherent benefits of the shapeshifting ability.
Lets look at how much more powerful is the shapeshift variant than a standard druid w/o any wildshape or shapeshift at lvl 1, 4, and 7, going with wealth by level guidelines.
You get +4 str, and +4 natural armor, with a 1d6 dmg attack.
Lets assume you have 10str/dex/con, hide armor, a club, and a heavy wooden shield
Shapeshift:
+2 atk
14ac
1d6+2 dmg
Non-Shapeshift w/ shillelagh:
+1atk
15ac
2d6+1 dmg
Non-shapeshift w/o shillelagh:
+0atk
15ac
1d6dmg
its not really going to get any better until lvl 8 for the shapeshift druid:
By 4th level: (5400gp, dragonhide full plate + 1 (4300gp) (9ac), heavy wooden shield +1 (1100gp)(3ac))
Shapeshift:
+5atk
14ac
1d6+2dmg
w/o shapeshift: (brambles, shillelagh, barkskin)
+4atk
24ac
2d6+5dmg
w/o shapeshift: no buffs
+3atk
22ac
1d6dmg
By lvl 7: (13,600 gp more than lvl 4, shocking club +1 (8100gp), ring of protection +1 (2000gp), 3500gp left over)
Shapeshift:
+7atk
14ac
1d6+2dmg
w/o shapeshift: (shillelagh, spikes (all day long), barkskin, bulls strength)
+9 atk
26ac
2d6 + 8dmg +1d6
w/o shapeshift: no buffs:
+6atk
23ac
1d6 +1 +1d6
P.S. If you dont like the dragonhide plate, just get leafweave banded or bp instead and drop the ac by 2 or 3, doesnt make a huge diff in the end.
If they manage to get proficiency with a great club, the damage ramps up to 3d8+8dmg, in which case they could do fully 3x the damage of their shapeshifted friend. So basically aver about 3rd level, it turns into a form that is primarily used for running away. I do not really think that +1atk, +1dmg -1ac at first level is really worth taking the animal companion away, especially when by level 4 your base form is significantly more powerful than your shapeshifted form...