Mythical Leprechaun

Indestructible
As long as your devotion to {u/r} is less than seven, Mythical Leprechaun isn't a creature.
Constellation — Whenever an artifact enters the battlefield under your control you gain one life.
Search your library for an artifact card with
converted mana cost X or less and put it onto the battlefield. Then shuffle your library.
Leprechaun power and toughness are equal to
the number of artifacts under your control.