The Sovereign Warstorm

When this creature enters, if it was cast,
create a Human Army, a Dwarf Army,
and an Elf Army. Amass 2 for each of them.

Whenever you Amass, create a Godsent Army.
Its a 0/0 Legendary creature army.
It enters with +1/+1 counters equal to the highest powers among Armies you control.