While the life loss and gain synergy provides incremental advantage, there are better cards with similar effects, such as Zulaport Cutthroat or Blood Artist, which have lower mana costs and provide more immediate impact
For a proper draft night with a full table, a Play Booster Box is the better pick
Graveyard Overdrive has a few cards that like to be sacrificed, but they typically do it themselves for a beneficial effect
copied Naru Meha and the land/mana artifact both re-enter the battlefield
Mondrak, Glory Dominus's ability to double any token that's created under your control justifies the high price, but it becomes an even more fiscally sound investment when it gives itself an indestructible counter to become an unmovable threat
Quickly glancing at the numbers, it appears these fat packs are worth about 1/3 the cost of the corresponding sets booster box prices