Given the fact that he'd need considerable IC effort in order to create most complex objects and the fact that he is a warden, limiting the size and quantity of objects he can create should be a sufficient nerf for this power. (Basically: because he'll be using his own aether reserves to create things, he'll need to be cautious about how much he expends at any one time!)
It's not necessary to fully nerf his ability to create living creatures, since it sounds like it's already built into this power that he cannot create sentient/ensouled beings. Small, non-sentient animals and plants are fine.
no subject
Given the fact that he'd need considerable IC effort in order to create most complex objects and the fact that he is a warden, limiting the size and quantity of objects he can create should be a sufficient nerf for this power. (Basically: because he'll be using his own aether reserves to create things, he'll need to be cautious about how much he expends at any one time!)
It's not necessary to fully nerf his ability to create living creatures, since it sounds like it's already built into this power that he cannot create sentient/ensouled beings. Small, non-sentient animals and plants are fine.