Triad of Countless Conflicts

{r}{w}, {t}: Knights you control get +2/+2
and gain indestructible until end of turn.
{r}{g}, {t}: Warriors you control get +3/+0
and gain trample until end of turn.
{g}{w}, {t}: Samurai you control get +1/+4 or
+4/+1 and gain double strike until end of turn.