Tanjiro Kamado

When a Samurai you control dies to an opponent's creature, place one Vengeance counter on that creature and place one +1/+1 counter on Tanjiro

When Tanjiro enters the battlefield, search
your deck for a card named Nezuko Kamado
and place it into your hand. If Nezuko dies Tanjiro gains 5 +1/+1 counters.