Counter-abilities

[Noblellama]

So I was thinking the other day about abilities that counter other abilities
when I say countered I mean opposed by, not always nullified
Flying countered by Reach
Deathtouch countered by damage prevention
First strike by also having first strike

How cool would it be if there were a creature that had an ability that the effect was "Creatures blocked by this creature have their power reduced to X where X = this creatures toughness" or some sort of wording that nullifies trample?

any ideas how to counter other evergreen abilities (not counting archtype cycle from BoG)

[Kaylesh]

Since scry is now evergreen, I think I'd counter that with mill. You keep up top? Ok, toss it in the yard.

[LinkCelestrial]

For anti-trample.

"Creatures blocked by this creature may only assign combat damage to this creature"

Call it something like Steadfast.

[particle]

{serene master}.