After hearing that Heimdall sought a word with you, you went to meet him. Heimdall said that Munin wanted to see you. You visited Munin in his Ishalgen prison crystal. Munin told you that Stigma powers would give you the edge you need to achieve your destiny. You met Urd, Verdandi, and then Skuld. As Skuld ordered, you defeated Hellion in a Space of Destiny and acquired the ability to use Stigma Stones.