Wizards secretly bet on monster fights and cast illegal spells from their hand to rig the results. You can drop a giant muscle buff on a weak goblin or cast a silence spell to cancel a rival's enchantment. If a monster gets too many spells attached, the arena judge kicks them out.
The art style is very anime-heavy, which might not be everyone's cup of tea. It is a quick filler game where your secret bet card determines your entire strategy.