Once the activated ability resolves, the blocking requirement is set, even if the second target creature loses its power and toughness sticker before blockers are declared
It also lets Eldraine really bloom, presenting unusual strategies and some ill-advised garden paths to follow
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand
a pile of sleeves with slips of printer paper wont shuffle
Even better, your deck will be in the three best colors to make the most out of your tokens, both in giving them bonuses and making more of them, so you'll never be short of tokens to use
So, maybe not the best environment to learn, but I did the best I could considering the circumstances