some sort of HP buff? HP buffs are kinda.... UP.
Aside from the earth nymph and gravity shard, with its synergies with catapult and gravity pull, as well as CC/PC at the same time. (and Basilisk Blood isn't bad either (especially with voodoo...)
But the main thing of this card isn't "HP Buff", but "Death" since this card adds to the deaths of the battlefield, adding to the number of your bone wall, as well as mutation fodder. that said, I feel like it is way to similar with boneyard/graveyard right now and not really worth another card.
It also synergies very nicely in a sparktal.
Half the sparks power this, then the traces are used next turn to preserve the remaining sparks... then the following turn you rinse and repeat.
Also, if you throw in an eclipse, the traces themselves become a potent rush force... And it can be pulled off in a duo since the
could be used to power the gate (hybrids can be played using either of their component quanta).
It also synergies very well with otyughs. Again, consider an "Otyugh's Sparktal-Gate" deck.
In almost all ways, I think this card outshines graveyard / boneyard.