In most formats, losing life can be detrimental, but in Commander it is much more easily worked around, making the drawbacks of both cards not bad
While precons are usually decent, if a bit unoptimized, this time Wizards of The Coast have gone above and beyond to create some truly interesting and focused decks that include tight synergies and excellent reprints
At the beginning of your end step, you may return target creature card with power less than Mirko's from your graveyard to the battlefield with a finality counter on it
This sets up your draws nicely and then sacrifices for both extra life and some card draw
Eventually the dominance of Trix caused Dark Ritual and Necropotence to be banned, and the deck soon faded into obscurity
(The link will open in a new tab) Rage of the Abyss Booster Pack GAZE INTO THE ABYSS