Here's the first round:
2.2.8 should say, "the attack possesses." (It currently says, "the character possesses.")
2.2.14 "Played abilities on attacks may only be played while the attack is in the card pool." There's not really a problem with this rule, but... The Reversal keyword is a played ability that can _only_ be played from the hand. There needs to be text in the Reversal ability stating that the ability itself is playable from the hand and _not_ from the card pool.
2.2.15 "Enhance abilities on attacks may only be played during the Enhance Step of the attack they are printed on." What about Enhances printed on attacks that are face-up in the momentum? The ones that specifically say "Only playable from the momentum"? According to this rule, they can never be played, because they can only be played from the momentum AND they can only be played during the Enhance Step of the attack they're printed on.
2.3.6 should say, "the action possesses." (It currently says, "the character possesses.")
2.4.6 should say, "the asset possesses." (It currently says, "the character possesses.")
2.5.6 should say, "the foundation possesses." (It currently says, "the character possesses.")
2.6.3.2 is just awesome. Nothing wrong. Just a particularly necessary and well-done rule, and I wanted to note that. (:
2.6.6 should say, "this side of the split card possesses." (It currently says, "the character possesses.")
2.7 The "worst possible outcome" from the effect is woefully unclear. "Worst" is entirely subjective, some effects are gray areas, and some effects have simultaneous positives and negatives. This is way too vague. The opponent should be allowed to choose a value for "?" every time it is referenced; that way, the opponent decides what "worst" means.