Eragon, Blessed by Dragons

(Transforms from Eragon Shadeslayer)
Reach, double strike, vigilance.
When Eragon, Blessed by Dragons enters the battlefield you may search your library for a card called Saphira.
If you control a dragon Eragon, Blessed by Dragons gets +1/+2. If you control a card called Saphira Eragon, Blessed by Dragons gets +2/+3.