She not only dishes out an extra damage when she is played to all opposing characters, she also does additional damage when she banishes opposing characters in a challenge
On paper, it would surely cause a steep increase in mechanical and logistical complexity
Barracks of the Thousand is a pretty absurd reward for transforming this, spitting out more heavy-duty Gnomes basically for free
Legendary Enchantment - Aura Enchantment (CTRL to add secondary) Instant Transpose Draw a card, then discard a card
Using an Ability : If you have a character in play that isnt exerted, or you play an item, you can then play the ability on the card for any cost detailed on it
Entering the battlefield alongside two 1/1 cat tokens to further justify its cost, Regal Caracal has the power not just to develop your board state but to turn it into a real threat