Sanctuary, the Final City

{t} Add one mana of any color to your mana pool. Spend this mana only to cast creature spells
{w}{u}{b}{r}{g}{t} Tap any number of target creatures you control. Creatures tapped this way gain indestructible until the end of the turn. This ability cannot be activated during the combat step.
This is the last place that the bugs haven't managed to raze. So long as we draw breath, no claw nor tail will ever enter.