Tik Tok, Clockwork Robot

Tik Tok, Clockwork Robot enters the battlefield
with a Windup Counter, and can only attack or
block if it has one or more Windup Counters on
it.
Whenever Tik Tok attacks or blocks, remove a
Windup Counter from it.
Whenever you cast an Artifact, put a Windup
Counter on Tik Tok.