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Regarding point 5.2, I believe it is correct to establish the following:
5.2. Hit-and-run tactics are prohibited: the attacking hero is not allowed to retreat in the first round of battle if they have used magic that, in any way, worsens the opponent's position. It is permissible to inflict damage on oneself (e.g., to reduce the cost of a bribe). If the opponent resists, the attacking hero may retreat in the first round.
The hit-and-run rule does not apply to a hero who is defending.
Point 5.12. The Grail cannot be extracted.
Point 5.13. It is best to leave it as is.
5.14.4. It is permitted to attack a Guardian more than once if it contains an enhanced stack.