Juggernaut's hangar

Juggernaut's hangar comes into play with ten
counters on It.
When you tap another artifact different from
Juggernaut's hangar, remove one counter on it.
When there are no counters on Juggernaut's
hangar, search in your library or in your hand
for a legendary artifact called Juggernaut and
put it into play without paying it's mana cost.
{t}-Add {1} to your mana pool.