Wolf Knight Artorias

When Wolf Knight Artorias enters the battlefield, put one +1/+1 counter on it for each other Legendary Knight of Gwyn you control
{t}{4}: Search your library for a card named "Great Shield of Artorias" or "Great Grey Wolf Sif." Reveal that card and put it into your hand and shuffle your library.
{10}: Sacrifice Wolf Knight Artorias: Search your library for a card named "Corrupted Knight Artorias," put it onto the battlefield and shuffle your library