Great Girros

Summoning Call 2 - if ypu don't control any
Girros, {t} Great Girros and put two 1/1 Girros
token onto the battlefield under your control.
Converge - When Great Girros is blocked, other attacking Girros target that blocking creature.
Girros attacking this way act as an extention of
Great Girros, combining their power and
toughness.