Unfortunately, the 3-star immersive cards are the rarest pull outside the Crown Rare cards, so this may take some time to complete, but given how many packs it may take to meet Mew's requirements, odds are you may have the others by the time you unlock that one
Vendread Anima X DARK Level 1 [ Zombie / Effect ] ATK 0 DEF 0 You can banish this card from your GY, then target 1 of your banished "Vendread" monsters, except "Vendread Anima"
But luckily there are some great resources out there to help you build your deck
(q) Sports craft such as canoes and skiffs (Chapter 89), or their means of propulsion (Chapter 44 for such articles made of wood)
It might not be as personalised as building your own deck, but once you know what youre doing, you can play around with your unique style
The MTG player might do this to help the recipient rapidly build up their own fledgling collection at no cost, or the player might do this to introduce someone to the game