Elva, Mystic Rider

Whenever you enchant a creature for the first
and second time each turn draw a card.
Whenever Elva, Mystical Rider becomes
enchanted, create a 1/1 black horse creature
token. Elva, Mystical Rider can only be
enchanted up to 3 times per turn.
{b}, Sacrifice a creature: Select an enchantment in
your graveyard that enchants a creature.
Return the selected card to the battlefield and
enchant a target creature with the
selected card.