Magic:Endurance

Transmutation
Level: Clr 2, Sor/Wiz 2
Innate Level: 2
Component(s): V, S
Casting Time: 1 action
Range: Touch
Target: Single
Duration: 4 Minutes/Level
Counter(s): --
Saving Throw: None
Spell Resistance: No
Metamagic: Empower, Extend, Maximize, Quicken, Silent, Still
Energy Substitution: No

The target creature's Constitution is increased by 1d4+1 with bonuses for militant levels.

Alternatively, Transmutant mages casting this spell turn the targeted creature into a Dire Bear for 1 round per caster level; this effect also grants the target a 1d2 + 2 constitution bonus.