Block Man, Temple Navi

Artifacts you cost 1 less to play.
When this becomes taped, deal 1 dammage to all opponents and creatures they control.
When you cast an artifact spell place a charge
counter on Block Man, Temple Navi.
Remove 7 charge counters from Block Man,
Temple Navi: Block Man, Temple Navi becomes a
8/8 with trample and Vigilance. With if this were
to die return him to the battlefield.