mtg planechase card size Oversize Sleeves 3.6 inch x 5.1 inch (91 mm x 130 mm), Fit for Plane Chase Cards, Dr. Who Commander Deck, Large Card Sleeves : Toys & Games The Magic Librarities

Her standout strength is scaling Lifegain tied directly to combat damage

Do note that you cannot save yourself or protect yourself from colorless damage, so something like a colorless flyer such as Steel Hellkite will prove a problem, or colorless targeted removal like Scour from Existence or Karn Liberated

If you control multiple Cursed Wombats, each permanent you control will have that many instances of the granted ability

This is very strong in Type Four since only one spell can be cast per turn so if your foe casts something and then you counter it, that's it, nothing more can be done

Its also easy to get it back to your hand, allowing you a chance to do it again