Asao's Tragedy

You may cast this spell only while you control an Asao permanent. If an Asao permanent is removed from the battlefield while this card is active, sacrifice it.
If a creature you control without +1/+1 counters on it would die, it doesn't. Instead, put three +1/+1 counters on it and tap it.
Creatures you control with +1/+1 counters on them have Bushido 1 and vigilance.