The Stores of Losturia

The Stores of Lostruia enters the battlefield
tapped.
{t}: add one mana of any color. Use this mana
only to cast pirate and vehicle spells.
{t},{1}{u}{u}{b}{b}{r}{r}: Create a legendary artifact
called Lostruian Magic Cannon. This artifact has
"{t}:Deal 3 damage to any target. Whenever a
pirate enters the battlefield you may untap
this artifact."