Alberich, Caldezi Bard

Whenever you cast an enchantment spell, Alberich
gains hexproof until end of turn.

Whenever Alberich attacks, you may sacrifice an
enchantment and pay {w}{u}{g}. If you do, search for
an enchantment card with a converted mana cost of
4 or less in your library and put it onto the battlefield. Reshuffle your library afterwards.

"Even his snores got vibrato." Caldezi guard.