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However, the fact is that a block or blitz action is where you declare standing player A does something physical (punch in the face) to standing player B which makes player B fall prone on the floor and thus requires an AV roll against them where you can use pomb.
Diving Tackle is not a block or a blitz, granted but (and unlike a fowl), is also where you declare standing player A does something physical (diving tackles) to standing player B which makes player B fall prone on the floor and thus requires an AV roll against them. Thus player A could technically use Piling On and Mighty Blow as it falls under the same rules/type of physicality (albeit different type of block). You see what I'm saying?
I assume this has never been allowed in the rules as it would be way too powerful (the ability for a player to create -2 to an opposing dodge with the bonus of pomb should they fail!?) but I was just wondering what you guys thought. Thanks for replying to this potentially ridiculous post!