I have therefore placed it at number one on my list and over a card like Counterspell because of its versatility and over Force of Negation because it does not 2:1 oneself
One of the best things about the card is how flexible it is on the mana cost
A box of Dragon Shields always comes with 100 sleeves, giving you plenty of extra when you go to sleeve up a constructed deck plus its sideboard, or a complete Commander deck
Here, to the best of my recollection, was the original version of the card: Crazy Cat Lady 3WW Creature Human 3/3 Cats you control get +1/+1
You can argue that mana is the most important resource in Magic, so getting more of it is one of the best game actions you can take
Unnatural Selection If you're interested in changing specific Creatures and not altering every single one you control, you could explore Unnatural Selection