Even if that creature is legendary, the Spirits would not enter the battlefield attacking
Krenkos Buzzcrusher Exxaxl: A 4/4 flying trample for 4 mana is nothing too special, but getting rid of 3 of your opponents lands certainly is
Then you've got to get on quick!" P/T Number 146 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Timeless, Vintage Not Legal Formats Alchemy, Modern, Pauper, Pioneer, Standard Rulings (10/2/2025) Gaining vigilance any time after the moment you choose to attack with Aang, A Lot to Learn won't cause him to become untapped, and losing vigilance after that time won't cause it to become tapped.
Just don't put this card in your Limited deck
While I chose to look past the Scooby-Doo stylistic art, I focused on the blood-curdling villains for a darker, more atmospheric tone