Proven Samurai

Trample

If you control a creature named Faithful Samurai, this creature gains +1/+1.

Sacrifice three untapped creatures: If the creatures you sacrificed are named Faithful Samurai, Skilled Samurai, and Proven Samurai, you gain an emblem with "Once during your turn you
may pay {0}, if you do, add {w}{u}{b}{r}{g}."