Mardu Prefect

Vigilance, first strike, deathtouch
At the beginning of combat on your turn
Mardu Prefect gets +3/+0 until the end of the turn
At the beginning of combat on your
opponents turn Mardu Prefect gets +0/+3 until the
end of the turn
{1}Sacrifice another nontoken creature: Mardu
Prefect gains indestructible until the end of the turn
Only in exile, will I rest