Ugin not removing a card when using second ability.
Using Macbook Pro
Playing unranked to test a deck, Ugin's ability was used in 2 games - Both times checking the CMC of the cards on the field before using the -X ability - Paying exactly the amount - Both times on 2 seperate games, other cards were exiled and left the 1 card on the field which ended the game in the opponents favour.
Sorry I didn't have screenshots or video footage to show, but it's a bit of a weird one this!
Cardcoin#08916 shared this idea