Torren, the Wanderer

When Torren the Wanderer enters the battlefield,
scry 2, then draw a card.
Whenever an artifact with converted mana cost 4 or greater enters the battlefield, put an immortality counter on Torren.
When Torren dies, if it has an immortality counter on it, you may pay {1}{b}. If you do, return Torren to the battlefield transformed.