Rin Thosaka, Gem Magus

Lifelink

Servant Summoning —{w}{u}{b}{r}{g}: Put target Servant creature from your library, Graveyard, command zone, hand or exile to the battlefield under your control. This ability triggers once per game.

Master of the Holy Grail War —If you have a Servant creature on the battlefield under your control, Rin has protection from everything.

Master (You can have two commanders if the other is a Servant.)