Dyno Mantis, the Mightspinner/Rulings

Q: If Quixotic Hero Swine Snout gains 6000 power from two creatures being played into the battle zone, does Dyno Mantis, the Mightyspinner effect give Quixotic double breaker?
 * A: Yes. Quixotic's power is increased for the entire turn, not just while attacking, and therefore it has 5000 power or more.

Q: Does Dyno Mantis, the Mightyspinner effect affect power attackers that have power 5000 or more while attacking?
 * No. If a creatures power is below 5000 during the battle phase of that turn it does not gain Dyno Mantis, the Mightyspinner effect.

Q: If Muscel Charger is cast while Dyno Mantis, the Mightyspinner is in the battle zone, do all creatures that have their power increased to 5000 or more gain double breaker?
 * Yes. This is also true for every spell or creature effect that increases creature power permenently during a turn (not just while attacking).