I like the concept.
A card which clutters your opponents hand.Causes a passive drain on his quantaTherefore, forcing him to play it (costing more quanta)And then, it returns to the original owners hand
Just drop the stupid Pigley name?
edit:
Maybe make it belong to an Element? 5 'Random Quanta' is very little. And the draining of 1 quanta? That too is weak!
If it belonged to an element, it would be a great counter to a Rainbow which suffered a bad draw, unlucky quantum generation, tower denial or a tactical black hole or two. It would be an even better counter to opponents who have no way to generate x quanta. Say for example, it was made Gravity.
Call it "Dead Weight" or something... Reduce it's playing cost accordingly. This will force a rainbow player to either a) suffer the concequences (lose some random quanta) or play the card and b) lose more Gravity Quanta - meaning, no Otyugh/Devour etc.
Nice idea SG, you should play forum wars in this part of the world more often