pokemon hex maniac card Premium Trainer's XY-Collection Unveiled (This includes cards that come into play on that turn.) You may play only 1 Supporter card during your turn (before your attack). Hex Maniac 75a/98 Pokemon Card

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Its possible that the rest of the metagame will adjust to lock Chandra out, but I doubt it this new version of Aetherworks is probably here to stay

Rakdos Charm is the perfect antidote to this kind of problem (although not the specifically the Moat one...), it can deal with a selection of troublesome things while remaining useful outside of this scope and perfectly maindeckable without fear of having dead cards or losing much consistency

Any "as [this enchantment] enters the battlefield" or "[this enchantment] enters the battlefield with" abilities of the chosen enchantment will also work