No matter when you draw this badger warrior, you can sink your mana into it and get a whole slew of extra cards
If you control multiple Cursed Wombats, each permanent you control will have that many instances of the granted ability
Adding this to a collection doesn't come cheap, as it is currently sitting around $168.50 on TCGPlayer
Aggro decks can utilize him as described above, control decks will lean on the removal aspect but also appreciate the untap ability to gain more mana or grant pseudo vigilance, and combo decks can use the untap ability to do crazy things like untap Gilded Lotus or maybe an even more broken permanent
While players have certainly found ways to make powerful decks - with some popular meta decks becoming mainstays in tournaments - the community generally finds ways to combat these and develop counter-strategies, without the need for any cards to be banned from play yet
Maybe a Mardu deck with later entry Bartolom del Presidio