Bjorn, Partisan of Rahl

Mentor, Menace, Vigilance
Outlast {w} ({w},{t} Put a +1/+1 counter on this creature. Outlast only as a sorcery.)
When Bjorn, Partisan of Rahl activates it's outlast ability all creatures you control gain +0/+2 and indestructible until your next upkeep.
{r}, Bjorn, Partisan of Rahl gains double strike until end of turn.
{u}, Detain target creature an opponent controls. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.)