Hello all.
The idea is for a card to support the gravity shield. It comes in two flavors and is a risky card to play. But could easily make the gravity shield excel. Let it be noted that by and large I find the Gravity Shield already quiet quiet good. I also acknowledge that the Sundial card might be seen as the way you actually accomplish this effect. But I was thinking about it and thought I'd put it out there.
As an instant it adds +0/+4 to the toughness of the creatures either
1) on the board.
2) of the opponents.
As a permanent it adds +0/+1 to the toughness of the
1) creatures on the board.
2) creatures of your opponent.
This might require additional support or multiple instances to be viable but might be more of a deliberate strategy.