Here is the idea of a defense card against

an

, similar as Nightfall but for light and air creatures.
The idea is that on sunrise (unupgraded) the light afects directly to

an

harming his vision so they probability attack is reduced. And

creatures are charged with sun energy so they attack is +1 in the sunrise.
Otherwise, in midday sun (upgraded)

and

creatures are not so dammaged for light, and they probability attacks i reduced but not so much as in the sunrise. But :airand

have more effects in midday sun, they attack is still +1 but his life is +1 too because of the energy of the sun.
What you think? People would have to thing if uppgrade or not, but, just works against

and

!