Alesha, Who Smiles at Death

Although the returned creature is an attacking creature, it was never declared as an attacking creature. This means that abilities that trigger whenever a creature attacks won't trigger when it enters the battlefield attacking.

While resolving Alesha's triggered ability, you can't pay the cost multiple times to return more than one creature card.

Alesha's triggered ability checks the card's power only in your graveyard. The creature will still be tapped and attacking if its power is greater than 2 after it's on the battlefield.