I dont think it is too powerful cuz:
1)digest need 2 How many can u get per turn?!
2)if u digest the creature, it means u have lost some attack power...
3)it could be stolen or destory... if u can steal(unless u are rainbow deck), u are hard to use it cuz it need 2:gravity to digest one creature...
4)if u are darkness + gravity, how can the shield digest skeleton?!!
1) You can get quite enough gravity if you have enough gravity towers/pillars, and if it's put in a duo-trio deck with
as a reliable quantum source. With enough creatures, you could swallow up everything on your side (especially if you had a creature that could
mass produce other creatures... *coughFFQcough*)
2) True. This is a good balancing mechanic,
unless the creatures absorbed have been low cost creatures (Pests) that have been affected by health boosts (Nightfall/Eclipse, Plate Armor). They you're not technically losing out on attack anyway.
3) Yes, it can be stolen or destroyed, but a problem is whether this acts SIMILAR to Bone Wall (i.e. if Steal/Explosion targeted the shield, would it be taken away completely, or just
one charge?). If it does, they attempting to steal/destroy it is potentially harder than other shields.
4) I think it was
&
(Gravity and
Death, not Darkness), which would be useless in creating multiple creatures of skeletons and other dead creatures on your side of the playing field to replenish your shield.
It may not be too powerful, but I want to know if other people have any other objections or ideas that could improve (or approve) of this concept. It's still interesting, nonetheless.