Rijt, Golem Rebel

When Rijt, Golem Rebel enters the battlefield,
create X colorless golem creature tokens with
power and toughness equal to X.
Rijt, Golem Rebel's power and toughness are
equal to the number of golem creatures you
control.
Sacrifice any number of golem creatures: Create
an X/X colorless golem creature where X is the
total power of creatures sacrificed this way.