Because of the Altisaurs enrage ability, each time it takes damage, it fights again and again until you clear the board
The way this works is if a player has unspent mana in their mana pool, they lose that much life when phases change and that mana disappears
These are most noticeable on the edges and borders
It does get a little better with Rat tokens, but Id still steer clear of it most of the time Giving up food to hurt your opponent can definitely have a place, and even be a win condition, and the base line of the card as a three mana 3/2 that makes a food isnt a disaster Even without the enchantment part, youd always play it in your black decks
However, if someone else ever steals the monarch from you, you get a 1/1 with deathtouch and haste to help you steal it back
That's made even more impressive due to this set having not only Alternate Arts and Character Rares but also a Rainbow Rare Charizard