Nabeht, Transgression's Voice

As an additional cost to cast this spell, you may
sacrifice any number of creatures. This spell costs {1} less
to cast for each creature sacrificed this way.

Flying, menace

When Nabeht enters play, you may remove any number of
-1/-1 counters from among any number of creatures. If you
do, put that many +1/+1 counters on target creature.

Cycling {1}{b}{b}