Mew

Flying, Lifelink, Vigilance. When Mew enters play,
Scry 6; if you Scry an artifact, you may reveal it,
& put it in your hand. When Mew is destroyed, shuffle Mew into your Library.
{u}{u}, {t}: Search your Library for an Enchantment, reveal it, put it into your hand, and shuffle Mew
into your Library.
{u}{u},{t}: Prevent all damage done to
target creature this turn.