This tournament, appropriately named the Super Secret Battle, had its own set of promotional cards as prizes for the first, second, and third-place winners
Is a Treasure Token a Permanent
In the early game it's just a five-mana Damnation, and in the mid-game it's an okay sweeper with a few dorks, later you can play around it and really push the board your direction
Blaziken 192/182 - Destined Rivals - Scarlet & Violet - Pokmon Extended Artwork Protective Card Display Case
Then you can +1 him to force only dorks in the zone to block that region this turn, so you can put your beating 5/5 flying Commander into the same zone as some grounded dorks to get past
That has proved to be a decent effect, locking your opponent's character out of questing for a turn can be useful