Zephina, Newly Elected

Squad - As long as you control ten or more creatures, other creatures you control get +2/+2.
Whenever a creature you control dies, put a
charge counter onto Zephina, Newly Elected. If
she then has 6 or more charge counters, exile her,
then return her to the battlefield transformed.
"I was chosen for this job and I will live up to
everyone's expectations." - Zephina in her acceptance speech