Last Stand Mechanic

Last stand counters remove all abilities from a
permanent and make it into a 1/1 Human Knight
and it gains a last stand counter. Last Stand
counters cannot be interacted with except by a
last stand ability. Creatures with a last stand
counter gain last stand. The next time a creature
with last stand would die after gaining
a counter exile it instead. When a creature with
last stand dies return it to the battlefield under its owners control with a last stand counter on it.