Searches level 4 or lower Dark World monsters from your deck.
Effect only triggers when he is destroyed by battle.
Low stats make him only good for getting destroyed on the field
Scarr, Scout of Dark World can search out more copies of himself when he is destroyed. To increase search power, first search out all your copies of Scarr and then retrieve them with The Forces of Darkness. You can then set them again to search more.
Dark World monsters
Here is a list of Dark World monsters you can search with Scarr’s effect