Rayho, Portal Stepper

When Rayho, Portal Stepper enters the battlefield, you may sacrifice any number of creatures named Majestic Auricorn. For each
creature sacrificed this way, you gain 5 life and
draw a card.
Unicorn's you control have Lifelink and First
strike.
{5}{w}: Return target Unicorn with converted
mana cost 5 or less from your graveyard to the battlefield.