first: Divine shield: gives the unit a shield that completely absorbs the blow, and then disappears.
There are two options: either the shield absorbs any attack, or shots can pass through it, and it only works in close combat.
It would be a good ability or spell for those gnomes that have high damage and low hp.
Second: gnomes (I don’t know, all or separate units) can get a shield, as a strip of additional health.
You can also create a building for this ability: a tower that can restore this shield at some distance.
Like the protoss in starcraft 2)
