Mega Zygarde ex is so cool, it hurts my head to see such a painfully boring chase for its Mega Hyper Rare version and, while I still didn't enjoy the Lucario, Gardevoir, and Charizard MHRs, this one is easily my least favorite
Even though Unstable design and development took seven years, by the time we were ready to print it, the direct-to-print technology had not advanced enough to be viable, so mid-development, we had to pull the direct-to-print cards from the file
Starlight Rare Starlight Rare cards are one of the most valuable modern rarities
The only reasons it isn't higher are because it requires a costly six mana each turn to pull off, eating into resources you could be spending winning, and because needing two colours in your colour identity limits the decks it could fit into