UniVersus has been around in one form or another since 2006 (not quite as long as MTG of course, which first launched over thirty years ago, in 1993!), and allows players to use characters from wildly different series, taking on opponents in one on one battles, reminiscent of the combo heavy style of arcade fighting games
Some find this to be a downside of the format, and while perhaps it could be lessened for the better of the format's health, I personally enjoy the challenge of fighting through hate in the deckbuilding process and in actual games
So being able to tutor them while gaining life does not seem too bad
Regular tournament sleeves can fit up to two cards, while penny sleeves can hold up to four cards
2005 Japanese Summer Battle Road Mew Victory Orb Trophy What do you get when you combine an extremely rare trophy card with a beautiful Mew artwork