Its a fine suggestion , but truthfully i think the reveal archetype needs a bit more than just strength buffs.
Base strength wouldn't make them too strong IMO, although they would need to reset back to their original base strength when they go to the graveyard.
However It wouldn't make the archetype more 'stable' as you put it.
Something like this.
Whilst in you deck hand, or on your side of the battlefield, gain 1 base strength whenever a card in either players hand is revealed. When moved to the graveyard set base strength to 'N' (Even when locked)
There has been discussion on some changes you can find
here and
here
Although many people probably wont like the idea, I think one possible buff to the archetype is to allow certain cards to interact with your opponent revealed cards whilst in their hand.
It fits NG's faction style of resource control and not just simply revealing cards = buffing units, or triggering removal cards.
So what of these suggestions?
Silver
Discard a random revealed non-gold card from your opponent hand to their graveyard. then your opponent draws the top non-gold card from their deck and reveals it.
Gold Special
(Whenever this card is in your hand reveal it.) Move a chosen revealed card from your opponents hand to the bottom of their deck, then your opponent draws the top bronze card in their deck and reveals it.
This is powerful effect so I chose to make it always visible to your opponent, so they know you have it.
Silver
Whilst this card remains on the battlefield, reveal the top cards for both you and your opponent's decks
So just like when the card turns over in your hand when it is revealed, this will cause the top cards on both decks to flip over and be revealed, as long as the card is on the battlefield.