The Table of Sacrifices is an artifact summoned by the Three Sacks in order to raise the Yamiking (and likewise, Hydrate) to the surface.  Typically, a being from the Reverse Maruhage can only individually teleport back and forth between dimensions (we see when Crimson, LOVE and the Sacks return to the Dark World, they use a teleporter that allows them to raise and fall between the surface).  My assumption is that an object such as the Yamiking needs a lot of energy to rise up to the main world compared to the limited amount of energy that individuals can use.  Thus, the Table of Sacrifices is needed to gather energy from twelve individuals (in the form of a clock) to power the Yamiking.  After the Sacks summon the clock, Crimson and LOVE throw over defeated opponents (already known to be really strong since they made it to the final stage of the playoff) into each number, with the assumption that their great energy will siphon from the clock to the Yamiking. -