Gladhorne, Uncompromising

When Gladhorne, Uncompromising or another Unicorn enters the battlefield under your control,
put a +1/+1 counter and a Lifelink counter on
target creature you control.
{2}{w}{w}, Sacrifice Gladhorne, Uncompromising:
Put target permanent card in your graveyard that
was put there this turn onto the battlefield.
His legend is told by soldiers across a hundred worlds.
When he is seen, no one dies.