The Groom

Vigilance

When The Groom enters the battlefield, you may
search your library and graveyard for Vows and put
it into your hand. If you do, shuffle you library.

As long as you control Vows, The Groom has flying, trample, and indestructible.

I vow to protect your heart — not just in this game, but in every game we play, forevermore.