Yes, it also treats the Tamer as a Digimon when it digivolves. It treats it as a Digimon that digivolves, therefore "when a Digimon would digivolve" effects and "when a Digimon digivolves" effects will trigger. In addition, if a "Digimon can't digivolve" effect activates, digivolution won't be possible using this effect that also treats the Tamer as a Digimon.

Yes, you perform a digivolution bonus draw. A digivolution bonus draw is performed for any kind of digivolution.

No, it can't. Even if a card digivolves from a card that was placed on the field in the same turn, it can't attack during that turn. It can only attack in the turns after it's played.

Yes, it becomes a digivolution card. If that Digimon would leave the field, the Tamer card will be trashed like a normal digivolution card.

No, it doesn't.

Yes, it does.

It’s trashed.

Yes, you can. However, in such cases the "can't attack" effect prevents making the attack.

You activate the 1st effect from among the simultaneously triggered effects and attack. The 2nd effect can be activated before the counter timing, but because you can't declare another attack during an attack, you won't be able to attack using the 2nd effect, even if you activate it.

You can give that effect to such Digimon, but if the Digimon isn't affected by effects upon the trigger timing, the gained effect won't trigger.

No, you can't. For this card's 1st effect, you declare a digivolution, then upon revealing this card, you can also choose a Tamer as the card to digivolve, and that Tamer is also treated as a level 3 Digimon. As with the normal digivolution procedure, after revealing this card and declaring a digivolution, you can't choose to not digivolve. In addition, you can't declare digivolution into this card in the first place unless there is a card on the field that you can digivolve.