Bane, Breaker of The Bat

{1}{b}: Put two +1/+1 counters on Bane if his
power is 6 or less.
{1}{b}{b}: Put four +1/+1 counters on Bane if his
power is 8.
{2}{b}{b}: Put six +1/+1 counters on Bane if his
power is 12.
"Only when I'm dead do I intend to rest."