Darksteel Ravager

Indestructible (Damage and effects that say
"destroy" don’t destroy this creature. If its toughness
is 0 or less, it’s still put into its owner’s graveyard.)
When Darksteel Ravager resolves, lands that
produced mana spent to cast it don't untap
during your next untap step.
When the golem is too large for the gate, which gives
way first?