This three-mana enchantment plays nicely with the Sneak mechanic as youll have Ninjas entering and leaving the battlefield regularly by making your opponents lose 1 life any time a creature you control leaves the battlefield at its first level
Then, select the deck you want to personalize, and when editing that deck, go to More Details, to the right: Notice that sometimes you may miss and to the Sideboard (which is right above More Options), but what youre looking for is the screen shown below: Within a deck's details, you can set individual preferences for companions, sleeves and avatars for when you play that deck
The aim is to simply have a lot more than your opponents, and were huge fans of that
And you have to give it to WotC: As they've shown us with the SpongeBob SquarePants Secret Lair, they do know a good meme when they see it: If Spidey's meme card is indeed the pointing gag, the obvious execution would be an effect that copies or mirrors a creature
This isn't just an MTG tool