User blog comment:Inferno Pendragon/A Little Teaser/@comment-1070010-20161024192648/@comment-1705775-20161024193743

as for why Inferno opts to contain Ebsonscale rather than kill him (and effectively end the curse via a heroic self-sacrifice) - he is ready to kill himself and Ebonscale as he did in main canon but simply put isn't quite strong enough and has to absorb Ebonscale's Essence in a "desperation move" as Ebonscale spreads out in an effort to become one with the multiverse.